International Maths Olympiad Forum By SOF Olympiad Trainer - Page 87
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Sukrit from Swami vivekanand high school , Mumbai
Subject :IMO    Class : Class 4

Ans 1:

siddharth from Cambridge Indirapuram, Ghaziabad
Class : Class 6
B

Ans 2:

akashdeep from Presidium School , New Delhi
Class : Class 7
it should be 103 because 3+5=8+15=23+45=68+35=103 means first +5 then +15 then dirctly +30=45 then -10=+35

Ans 3:

Kanjani Ghonge from Ira Global School, Dombivli
Class : Class 8
It should be 145.

Ans 4:

ABHAY AGARWAL from ,
Class : Class 3

Post Your Answer

Neil Pathak from GD Goenka Public School, Paschiim Vihar, New Delhi
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

Post Your Answer

Rishab Murthy from Birla Public School , Doha
Subject :IMO    Class : Class 4

Ans 1:

Yatharth Jain from DPS, KUWAIT
Class : Class 6

Ans 2:

Aryan Swain from Kendriya Vidyalaya, Guwahati
Class : Class 5
The correct answer is B.

Ans 3:

akashdeep from Presidium School , New Delhi
Class : Class 7
5 a 5

Ans 4:

Hamsini from Yagappa International School, Thanjavur
Class : Class 4
there are 10 triangles:A,B,C,D,E,F,G,H,BC AND GH

Ans 5:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
B as the rhombus if turned slightly diagonally will form a square and 5 squares are already there

Ans 6:

Aananya Singh from DPS East, Bangalore
Class : Class 4
It should be 6 as the first one is the outer square(biggest one) and there are 4 small squares inside it, which makes 5 squares. There is also one square inside the figure which is tilted. It looks like a rhombus but isn't a rhombus because a rhombus doesn't have 4 angles measuring 90 degrees.

Ans 7:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
SOF CLARIFY MY DOUBT ASAP

Ans 8:

SUKRIT TANEJA from DPS FARIDABAD, FARIDABAD
Class : Class 4
it should be 5 as that one is a rhombus

Ans 9:

Sanaya Singh from Hiranandani Foundation, Mumbai
Class : Class 2
Unfair

Ans 10:

Reyansh Garg from Lotus Valley International School, Noida Extension
Class : Class 4
The correct answer is C because one is the outer square, then there are 4 squares inside it and one square is tilted so that will also count.

Ans 11:

Ramvaros Kumar from Dps ranipur, haridwar
Class : Class 5
Correct answer is B

Ans 12:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 7
The correct answer is B

Ans 13:

Sanaya Singh from Hiranandani Foundation, Mumbai
Class : Class 2
so so so so so so wrong. They wont even let us put this as an error, when we put this as an error, it will say 'Please enter valid error' when it is a valid error. So bad SOF.

Ans 14:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7

Ans 15:

PARTH PANCHAL from NEW HORIZON SCHOLARS SCHOOL, THANE
Class : Class 7
yes,b is the right answer. we should just turn the diamond little bit. it will become square. and the other 5 squares.

Ans 16:

spj2011 from DB, Chennai
Class : Class 5
Whole question is wrong. The solution is also wrong. The 'squares' in the question and the solution has to be changed to 'triangles. The only thing which was right is the diagram in the solution.

Ans 17:

Tanav Jain from GCC International School, Thane
Class : Class 3
THE CORRECT ANS: IS B

Ans 18:

digamber12 from st francies xavier english medium school ajgaon, sawantwadi
Class : Class 4
5

Ans 19:

Priyanshi Pritam from Vibgyor High, Bangalore
Class : Class 6

Post Your Answer

Harsh Gaud from S N B P school, Rahatani, Pune, Pune
Subject :IMO    Class : Class 4

Ans 1:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6
The correct answer should be Option B. By Ankush

Ans 2:

SUBHAM BISWAS from Salt Lake school , Kolkata
Class : Class 4
D

Ans 3:

Mihika Pal Choudhury from The Shri Ram School Vasant Vihar, New Delhi
Class : Class 7

Ans 4:

Yatindra G from SBOA, Chennai
Class : Class 4
How is it B? Guys somebody OH PLEASE explain! I don't understand ANYTHING:(

Ans 5:

Tanisha Patri from NPS whitefield, Bangalore
Class : Class 6

Ans 6:

Rudraksh Tiwari from Kumaon Public School Dwarahat, Almora
Class : Class 7
B

Ans 7:

Pratham Gupta from P G Garogdia, Mumbai
Class : Class 5
Answer is B

Ans 8:

SUBHAM BISWAS from Salt Lake school , Kolkata
Class : Class 4
D

Ans 9:

Ashwak from Cambridge, Jalandhar
Class : Class 8
B

Ans 10:

akashdeep from Presidium School , New Delhi
Class : Class 7
b because if we divide the into 2 part i.e 4 and 1/2 and 2 and 1/8 means 4-2 whloes is 2 1/2 and 1/8 way 1/2=2/4=4/8-1/8=3/8 hence ans 2 wholes and 3/8

Ans 11:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
B AS we convert mixed to improper fraction so 4 1/2 = 2 x 4 1 /2 = 9/2 2 1/8 = 8 x 2 1 / 8 = 17/8 Then we find equivalent fractions 9/2 = 9 x 4 / 2 x 4 = 36 / 8 and 17 / 8 will remain same as we know. Now we do subtraction. 36 / 8 - 17 / 8 = 36 - 17 / 8 = 19 / 8 = 19 divided by 8= Quotient=2, Remainder=3 so 2 3/8

Ans 12:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4
ANS;B

Ans 13:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4

Ans 14:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
the answer is b

Ans 15:

Siddhi singh from GIIS, Banglore
Class : Class 5

Post Your Answer

NIRMAY JOSEPH from St Columba's School, New Delhi , New Delhi
Subject :IMO    Class : Class 4

Ans 1:

Lakshya Singh Tomar from DPS Noida, Noida
Class : Class 4
correct answer is B PLEASE mind SOF

Ans 2:

Shubham Gautam from KR Mangalam World School, Gurugram
Class : Class 6
answer is C

Ans 3:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
b

Ans 4:

NIRMAY JOSEPH from St Columba's School, New Delhi , New Delhi
Class : Class 9

Ans 5:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
SOF olympiad..please make changes to your tests when you have reported errors...or atleast revert back to students who report error.. Ans shd be C...but if you do not make amendments..you are confusing kids

Ans 6:

Saanvi from Avm, Mumbai
Class : Class 5

Ans 7:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
see it ISN'T a rhombus it is a parallelogram Master answer explain ASAP as this question can come in IMO

Ans 8:

Kavitharini Joseph from HUS, Chennai
Class : Class 6
how could the answer be b it has to be c

Ans 9:

Adithya from Psbb senior secondary school, Chennai
Class : Class 8
It should be C , for sure, kindly make change

Ans 10:

mishika tripathi from DPS, Gurugram, Haryana
Class : Class 5
yes it should be c

Ans 11:

Arkoprava Dey from Techno India Group Public School, Coochbehar, Coochbehar
Class : Class 9
ANSWER SHOULD BE C. Q HAS A LINE OF SYMMETRY.

Ans 12:

Adithya from Psbb senior secondary school, Chennai
Class : Class 8

Ans 13:

Daksh Jain from Deens Academy, Bangalore
Class : Class 4
Answer should be C

Ans 14:

Adithya from Psbb senior secondary school, Chennai
Class : Class 8
sorry guys ans is b it is a parallelogram hence it has no lines of symmetry

Ans 15:

Aradhya Gavhankar from PICT model school, Pune
Class : Class 5
The ans is C .Q fig has a line of symmetry

Ans 16:

Manaswi Santosh Patil from Silver Crest , Pune
Class : Class 4
C

Ans 17:

Riya from Bhavan Vidyalaya, Chandigarh
Class : Class 8
answer is C

Ans 18:

Deepak Vijayaragavan from Greenwood High, Bengaluru
Class : Class 4
Answer is C

Ans 19:

jiya zaveri from inventure academy , bengaluru
Class : Class 4
THE ANSWER HAS TO BE C ...HOW CAN IT BE B???A rhombus is symmetrical

Ans 20:

Rohan Singhal from Manav Rachna International School, Gurgaon
Class : Class 5
Ans=b

Ans 21:

SOUMIL DE from INDUS VALLEY WORLD SCHOOL, KOLKATA
Class : Class 4
the answer is C

Ans 22:

Jayanth from The Deens Academy, Bengaluru
Class : Class 4
Ans is c

Ans 23: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 24:

Deepak Vijayaragavan from Greenwood High, Bengaluru
Class : Class 4

Ans 25:

Lakshya Singh Tomar from DPS Noida, Noida
Class : Class 4

Ans 26:

akashdeep from Presidium School , New Delhi
Class : Class 7
ans b symitrical figures are that are diveided eqally

Ans 27:

Twisha Arora from Modern Vidya Niketan, Sector - 17, Faridabad, Haryana, FARIDABAD
Class : Class 7
Ans 15:Anirudh Bhattacharjee from THE LEXICON INTERNATIONAL SCHOOL KALYANI NAGAR PUNR, PuneClass : >Class 5plz dont fight, if it comes in IMO question paper, parallelogram has no line of symmetry.It has a line of symetery Answer 15

Ans 28:

Ishan Boggarapu from NPS Whitefield, Bangalore
Class : Class 7
It should be C

Ans 29:

kushagra chaturvedi from Podar Internation School Chinchwad, Pune
Class : Class 5
Answer 1:Q is a parallelogram. It has no line of symmetry. If you don't believe me, please check on google and search ''Does parallelogram has a line of symmetry or not. -Kushagra Chaturvedi

Ans 30:

Arav from sms, jaipur
Class : Class 6
ans should be D

Ans 31:

IAMLOST from ABC, Pune
Class : Class 8
plz dont fight, if it comes in IMO question paper, parallelogram has no line of symmetry.

Ans 32:

Nehal from New Horizon Gurukul, Bangalore
Class : Class 6
if you do not believe c is correct why don't you check in google . Q is rhombus so check does a rhombus have line of symmetry

Post Your Answer

shambhavi verma from n h goel world school, raipur
Subject :IMO    Class : Class 4

Ans 1:

Kavneet Kaur from Sat Paul Mittal School, Ludhiana
Class : Class 8

Ans 2:

SUBHAM BISWAS from Salt Lake school , Kolkata
Class : Class 4
A

Ans 3:

Kaitav Dholu from Doon Public School, Bhuj, Bhuj
Class : Class 4
The correct answer is option B. Please fix this problem

Ans 4:

Anwesha Kale from wisdom world school, pune
Class : Class 5

Ans 5:

Lakshanya Girase from Fravashi Academy, Nashik
Class : Class 5

Ans 6:

Shruti Agarwal from dpsnoida, Noida
Class : Class 4
a

Ans 7:

Shaurya Yadav from CRPF PUBLIC SCHOOL , Delhi
Class : Class 4
Answer is C

Ans 8:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
c

Ans 9:

Anwesha Kale from wisdom world school, pune
Class : Class 5
The correct answer is C

Ans 10:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 7
The correct answer is C as Toffee means cake

Ans 11:

Anwesha Kale from wisdom world school, pune
Class : Class 5
CLASS 5TH

Ans 12:

Adithya raj singh from chinmaya international residential school, tirupur
Class : Class 8

Ans 13:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 7
The correct answer is option C.

Ans 14:

NEEV SINGH from VISHWA BHARATI PUBLIC SCHOOL, Noida
Class : Class 8

Ans 15:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 9
The correct answer is C

Ans 16:

Kaitav Dholu from Doon Public School, Bhuj, Bhuj
Class : Class 4
We cut cake on birthday. But here cake is called butter. The right answer is B

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shambhavi verma from n h goel world school, raipur
Subject :IMO    Class : Class 4

Ans 1:

Sarthak Shome from Harvest International, Bangalore
Class : Class 7
I DIDNT KNOW THE ANSWER FIRST

Ans 2:

Lakshanya Girase from Fravashi Academy, Nashik
Class : Class 5

Ans 3:

saumit from Narayana E-techno, mumbai
Class : Class 5
Even there are no endpoints to two lines of symmetry in A option. And the figure in o has option C has a very large diameter and has only one line of symmetry

Ans 4:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 7
A because the two small lines are not facing towards each other

Ans 5:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4

Ans 6:

Radhika Jain from Sushila Birla Girls' School, Kolkata
Class : Class 5
Why did they give option C bigger than the others. The figure should have been of same size???????????????

Ans 7:

Arnav kaul from Chirec, Hyderabad
Class : Class 2
A because the others have more than one line of symmetry

Ans 8:

khushi from anandalaya, anand
Class : Class 5

Post Your Answer

shambhavi verma from n h goel world school, raipur
Subject :IMO    Class : Class 4

Ans 1:

Arnav kaul from Chirec, Hyderabad
Class : Class 2
A because it becomes golden

Ans 2:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 7
The correct answer is A

Post Your Answer

Mohnish S from CMR National Public School, Bengaluru
Subject :IMO    Class : Class 4

Post Your Answer

NIRMAY JOSEPH from St Columba's School, New Delhi , New Delhi
Subject :IMO    Class : Class 4

Ans 1:

AHELI CHAKRABARTI from BGS INTERNATIONAL PUBLIC SCHOOL, DWARKA
Class : Class 4
8 is the correct option which is in the option D not B.

Ans 2:

R JOHNSTEVEN from MANGADU PUBLIC SCHOOL , Chennai
Class : Class 4
no it is 8 - R( V W X P T U I - E ) S

Ans 3:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
NO,ITS 9.

Ans 4:

Amelia Kar Laha from KV IIT Powai, Mumbai
Class : Class 6
the answer is 8 option (D)

Ans 5:

Vihan Bandekar from Bethany High, BANGALORE
Class : Class 7
8 (D) is correct answer

Ans 6:

SUBHADEEP MOHAPATRA from DAV PUBLIC SCHOOL , ANGUL
Class : Class 3
8 IS THE CORRECT ANSWER

Ans 7:

kendre vaishnavi mangesh from podar international school , latur
Class : Class 5
what,,,is ans B or D,,,,'''

Ans 8:

Shubham Gautam from KR Mangalam World School, Gurugram
Class : Class 6
D (8) is correct answer

Ans 9:

IAMLOST from ABC, Pune
Class : Class 8
the ans is d

Ans 10:

hemil ketan chavda from ABPS, VERAVAL
Class : Class 9
IT HAS TO BE 8. DO NOT COUNT THE NUMBERS

Ans 11:

Yatharth ku mar Bhuyan from Lvis , Gurgaon
Class : Class 4
stupid checking mistake .

Ans 12:

Mihika Bole from Caelum High, Pune
Class : Class 4
9 is wrong 8 is correct. option D

Ans 13:

Nishka Singh from KV Nad Aluva, Ernakulam
Class : Class 5
8 is correct answer

Ans 14:

SAMPAD BANERJEE from DELHI PUBLIC SCHOOL , BILASPUR
Class : Class 6

Ans 15:

Dripto Goswami from Aditya Academy Secondary, Barasat, Barasat
Class : Class 7
its 8

Ans 16:

Ishan Kapilbhai Barochiya from Mayoor Private School , Abu Dhabi
Class : Class 6
Yup 8

Ans 17:

Nischal shah from Amanora Pearson school Pune, Pune
Class : Class 5
they are giving wrong ans the ans should be D 8

Ans 18:

Soumyajit Das from Hariyana Vidya Mandir, NORTH 24 PARGANAS
Class : Class 6
answer is 8 sof doing many mistakes in problems and make us confused. no reply from the admin.

Ans 19:

Ira Agrawal from Sancta Maria International School, Hyderabad
Class : Class 3

Ans 20:

Abhiraj Singh from RAYAN INTERNATIONAL SCHOOL, Mumbai
Class : Class 2
i go for 8 its a stupid mistake

Ans 21:

Ira Agrawal from Sancta Maria International School, Hyderabad
Class : Class 3
I’m just confused 🤷‍♀️ l know the answer is eight

Ans 22:

mishika tripathi from DPS, Gurugram, Haryana
Class : Class 5
The Question is wrong it should be 8 (D)

Ans 23:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 8
answer is 8

Ans 24:

Arkoprava Dey from Techno India Group Public School, Coochbehar, Coochbehar
Class : Class 9
Answer should be 8 not 9 as 4 is not a letter, it is a number.

Ans 25:

Aahaan Mishra from Sai International School, Bhubaneswar
Class : Class 4
It is written 8 in solution and you are sating 9

Ans 26:

Avya Pandey from NPS International, Singapore
Class : Class 7
D is answer8

Ans 27:

Shaurya agrawal from kothari international school, pune
Class : Class 7
D is the write ans not B

Ans 28:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 7
D

Ans 29:

Utkarsh Chakravarty from Pinnacle High International School, Mumbai
Class : Class 6
4 is not a letter. it is a number. the correct answer is 8.

Ans 30:

Dhruv from Springdales, Dubai
Class : Class 9
8 is correctfr

Ans 31:

Dakala Murari from Indian school of excellence, Bangalore
Class : Class 4

Ans 32:

Myshi bhandari from GMA, Dubai
Class : Class 5
Ans. 8

Ans 33:

Tvisha Bindal from Manav Rachna International School Sector 14, Faridabad
Class : Class 4
IN solution also they are saying there are 8 letters

Ans 34:

RC from Vibgyor, Navi Mumbai
Class : Class 4
in the solution there are 8 letters but it says " there are 9 letters "Ans : D

Ans 35:

Raghav from DPS Gurgaon, Gurgaon
Class : Class 5
D

Ans 36:

Yatharth ku mar Bhuyan from Lvis , Gurgaon
Class : Class 4
there is no explanation for 9 , even I suggest it's 8.

Ans 37:

Neil Patkar from Ramniwas Bajaj High school, mumbai
Class : Class 6
how is it 9 can someone explain ?

Ans 38:

Pradipta Kumar Jana from DPS North Kolkata, Kolkata
Class : Class 4
8 is the correct answer

Ans 39:

Tanishi Das from Bethany Institutions, Bangalore
Class : Class 4
It is 8, SOF has probably miscounted the number of letters, please correct it.

Ans 40:

Chiranjib kar from MOUNT LITERA ZEE SCHOOL, JAJPUR
Class : Class 6
Ans is 8. 4 is a number not a letter

Ans 41:

Charvi from Bhatnagar International School, Delhi
Class : Class 7
hi i am unicorn i think the answer is 8please do not fight you are actualy cyberbulling

Ans 42:

Tvisha Bindal from Manav Rachna International School Sector 14, Faridabad
Class : Class 4
but in answer they are saying 9

Ans 43:

Avirat Chaudhary from St Xaviers School, Ranchi
Class : Class 3
8 is the correct answer because you did not mention in the question that we have to count the numbers and letters both.

Ans 44:

MAANNYA from Udgam school for children, Ahmedabad
Class : Class 7
Correct answer is 8 (option D). Please do the necessary correction.

Ans 45:

Aarushi Chakraborty from South City International School, Kolkata
Class : Class 6
I hope everyone has a brain

Ans 46:

shubhavi Dhondge from NPS, Banagalore
Class : Class 8
the ans is D which is 8

Ans 47:

Goutham from lt, Chennai
Class : Class 4
You guys stop arguing! Its 8 they said BETWEEN R and S so there are only 8 letters. Its only 9 if we count R or S with it

Ans 48:

Abhinav Nakka from Timpany school, Visakhapatnam
Class : Class 6
the answer is 8 letters if we interchange 6 with v

Ans 49:

Navya Vats from Saint Xavier High School, Noida Extension
Class : Class 7
In your solution you have given 8 as the ans, but in options you have given ans is B (9). Please correct because it is misleading the candidates.

Ans 50:

sauradeep from j v m Shyamali , ranchi
Class : Class 9
YES THE ANSWER IS 8

Ans 51:

ISHAN KUMAR SUMAN from DPS Indrapuram, GHAZIABAD
Class : Class 4
The ans is D only

Ans 52:

Sarthak yadav from RPS, Mahendragarh
Class : Class 9
answer should be 8

Ans 53:

Nischal shah from Amanora Pearson school Pune, Pune
Class : Class 5

Ans 54:

Abhijeet Dhanda from BAL BHARATI SCHOOL, Bilaspur
Class : Class 6
Answer D is correct Why it's answer is B

Ans 55:

SAURISH from R.N. Podar, Mumbai
Class : Class 7

Ans 56:

Anvi Sindhwani from BVM, NAGPUR
Class : Class 5
8 is the correct answer

Ans 57:

Kabir from Dimensions International College, Singapore
Class : Class 6
Agreed, it must be 8 as 4 is a number not a letter

Ans 58:

Aarnnav Mehta from Green Acres Academy, Mumbai
Class : Class 4
It is 8 the solution is telling it is 8 And when I count it’s 8

Ans 59:

Sarthak yadav from RPS, Mahendragarh
Class : Class 9
9 S WRONG ITS 8

Ans 60:

Tejas Agarwal from Prudence School , New Delhi
Class : Class 9

Ans 61:

NYRAH GUPTA from Sat Paul Mittal School, Ludhiana
Class : Class 7
9 is wrong dont consider ''4'' as letterits 8

Ans 62:

from , udaipur
Class : Class 6

Ans 63:

Mohammed Najl from Credence high school Dubai, Dubai
Class : Class 5
8.

Ans 64:

Adithi from Manipal, Mangalore
Class : Class 4
I also go for 8

Ans 65:

Riya from Bhavan Vidyalaya, Chandigarh
Class : Class 8
8 is correct answer

Ans 66:

Ameya Dhuri from Birla Public School, Doha
Class : Class 8
8 is the correct answer. Even the solution shows the answer 8

Ans 67:

Shaurya Shrivastava from Amanora school, Pune
Class : Class 6
all listen as it is given in the solution it is written the letter between "R" and "S" are V,W,X,P,T,U,I,E so if we count it is 8 so they have done a counting mistake

Ans 68:

Tanishi Das from Bethany Institutions, Bangalore
Class : Class 4

Ans 69:

Simrah Khan from GIIS, India
Class : Class 4

Ans 70:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 8
everybody the answer is d 8

Ans 71:

Ishan Kapilbhai Barochiya from Mayoor Private School , Abu Dhabi
Class : Class 6

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