International Maths Olympiad Forum By SOF Olympiad Trainer - Page 103
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tenzin thoesam from Tattva school , bengaluru
Subject :IMO    Class : Class 4

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Sukrit from Swami vivekanand high school , Mumbai
Subject :IMO    Class : Class 4

Ans 1:

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 2:

ABHAY AGARWAL from ,
Class : Class 3

Ans 3:

siddharth from Cambridge Indirapuram, Ghaziabad
Class : Class 6
B

Ans 4:

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

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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.

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

Ans 1:

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 2:

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 3:

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 4:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
SOF CLARIFY MY DOUBT ASAP

Ans 5:

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

Ans 6:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8

Ans 7:

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

Ans 8:

Priyanshi Pritam from Vibgyor High, Bangalore
Class : Class 8

Ans 9:

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

Ans 10:

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

Ans 11:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
B as the rhombus if turned slightly diagonally will form a square and 5 squares are already there

Ans 12:

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 13:

Yatharth Jain from DPS, KUWAIT
Class : Class 6

Ans 14:

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

Ans 15:

Reyansh Garg from Lotus Valley International School, Noida Extension
Class : Class 6
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 16:

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 17:

Aryan Swain from Kendriya Vidyalaya, Barimul, Kendrapara
Class : Class 6
The correct answer is B.

Ans 18:

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

Ans 19:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 9
The correct answer is B

Ans 20:

Manya Sharma from ,
Class : Class 4
wrong anwer it should be 8

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

Ans 1:

Tanisha Patri from NPS whitefield, Bangalore
Class : Class 7

Ans 2:

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

Ans 3:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4

Ans 4:

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

Ans 5:

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

Ans 6:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
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 7:

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

Ans 8:

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

Ans 9:

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 10:

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

Ans 11:

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

Ans 12:

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

Ans 13:

Ashwak from Cambridge, Jalandhar
Class : Class 9
B

Ans 14:

Siddhi singh from GIIS, Banglore
Class : Class 5

Ans 15:

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

Post Your Answer

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

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:

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

Ans 7:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune
Class : Class 7
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 8:

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

Ans 9:

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

Ans 10:

Deepak Vijayaragavan from Greenwood High, Bengaluru
Class : Class 4

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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

Ans 15:

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

Ans 16:

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

Ans 17: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 18:

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 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:

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 21:

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

Ans 22:

Shubham Gautam from KR Mangalam World School, Gurugram
Class : Class 7
answer is C

Ans 23:

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

Ans 24:

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

Ans 25:

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

Ans 26:

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

Ans 27:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
see it ISN'T a rhombus it is a parallelogram Master answer explain ASAP as this question can come in IMO

Ans 28:

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

Ans 29:

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

Ans 30:

Saanvi from Avm, Mumbai
Class : Class 5

Ans 31:

Avaneesh Barithaya from New Horizon Scholars School Vasant Lawns, Thane
Class : Class 5
bbbbbshb

Ans 32:

Kahaan Sanghvi from CNS Pune, Pune
Class : Class 4
Ans. C

Ans 33:

Avaneesh Barithaya from New Horizon Scholars School Vasant Lawns, Thane
Class : Class 5
qqqqq

Ans 34:

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

Ans 35:

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

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

Ans 1:

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

Ans 2:

Kaitav Dholu from Doon Public School, Bhuj, Bhuj
Class : Class 5
We cut cake on birthday. But here cake is called butter. The right answer is B

Ans 3:

Kaitav Dholu from Doon Public School, Bhuj, Bhuj
Class : Class 5
The correct answer is option B. Please fix this problem

Ans 4:

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

Ans 5:

Shruti Agarwal from dpsnoida, Noida
Class : Class 8
a

Ans 6:

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

Ans 7:

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

Ans 8:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
The correct answer is option C.

Ans 9:

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

Ans 10:

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

Ans 11:

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

Ans 12:

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

Ans 13:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 9
The correct answer is C as Toffee means cake

Ans 14:

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

Ans 15:

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

Ans 16:

Lakshanya Girase from Fravashi Academy, Nashik
Class : Class 5

Post Your Answer

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

Ans 1:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4

Ans 2:

Sarthak Shome from Harvest International, Bangalore
Class : Class 8
I DIDNT KNOW THE ANSWER FIRST

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:

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

Ans 5:

Lakshanya Girase from Fravashi Academy, Nashik
Class : Class 5

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:

khushi from anandalaya, anand
Class : Class 5

Ans 8:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 9
A because the two small lines are not facing towards each other

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

Ans 1:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 9
The correct answer is A

Ans 2:

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

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

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