International Maths Olympiad Forum By SOF Olympiad Trainer - Page 563
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Siddhant Bhavaraju from Gems, Dubai
Subject :IMO    Class : Class 2

Ans 1:

sagyaan satapathy from dav public school, talcher
Class : Class 3
the correct answer is wrong ... there are 12 triangles ....so, the correct answer is D.

Ans 2:

Mugdha Bangthai from Delhi public school, Nazira
Class : Class 4

Ans 3:

Mugdha Bangthai from Delhi public school, Nazira
Class : Class 4
Answer is option (B), because 1st Step - we cannot count the first figure triangles because these are mentioned under the (curved) or (circle) shaped. 2nd Step - In the second figure , there are 4 triangles which we can count as it is not like as metioned as first figure..... 3rd Step - In the third figure we can only see 3 triangles but then also you guys tought that answer is d but this is not the correct way! because can you all se the 2 triangles? Ok and the triangle in which the 2 triangles are mentioned is the large triangle and the correct sum is 4 4 = 8 triangles. Hence the answer is option (B). Girls are best than boys "O"!!

Ans 4:

ayush kumar from dps noida, delhi
Class : Class 6
ans is b

Ans 5:

ADYASHA SOURAV PANI from St.Helena's Pune, PUNE
Class : Class 2
Answer is - B

Ans 6:

sagyaan satapathy from dav public school, talcher
Class : Class 3
the first stikcer (circle) also has some triangles....

Ans 7:

Abhinha Ajay Ovhal from Podar International School, Latur
Class : Class 6
D

Ans 8:

ADVAY BANSAL from LOTUS VALLEY INTERNATIONAL SCHOOL GURUGRAM, GURUGRAM
Class : Class 6
4 3 = 7 not eight

Ans 9:

Vihan Rajesh from Chaman Bhartiya School, Bangalore
Class : Class 2
a,b,c,d

Ans 10:

ADVAY BANSAL from LOTUS VALLEY INTERNATIONAL SCHOOL GURUGRAM, GURUGRAM
Class : Class 6

Ans 11:

Mugdha Bangthai from Delhi public school, Nazira
Class : Class 4
Answer is option (B), 8THANKS. :D

Ans 12:

Kartik Kedar Bhogate from NPS , Singapore
Class : Class 2
the first one is 4 triangles then there are 4 triangles again so 4+4=8 then plus 3 more 8+3=11 but the answer is not there so you can choose anything near to 11 wichs is12 so hence the answer is option d

Ans 13:

suruchi garg from bhatnagar international school, delhi
Class : Class 8
B

Ans 14:

ayush kumar from dps noida, delhi
Class : Class 6
answer is d

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Kavitharini Joseph from HUS, Chennai
Subject :IMO    Class : Class 5

Ans 1:

Atrijo Roychoudhury from ST. Augustine Day School, Barrackpore, Ichapur
Class : Class 7
yes i agree

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
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Ashish Mediratta from GIIS, Singapore
Subject :IMO    Class : Class 5

Ans 1:

Archit Borkar from SSVM World School, Coimbatore
Class : Class 9
Option B is the correct answer.

Ans 2:

Aarav Hitesh Parikh from Gopal Sharma International School, Mumbai
Class : Class 8

Ans 3:

Nivesh from Hiranandani Foundation International, Chandivali Andheri east Mumbai
Class : Class 6
B

Ans 4:

Pratham Dave from GNS, Bangalore
Class : Class 7
B is the answer to this question

Ans 5:

Aarya Teja from Bharatiya Vidya Bhavans Public School, Hyderabad
Class : Class 6
(b)

Ans 6:

Prateeshtha Ghosh from Samhita Academy, Bangalore
Class : Class 8
B

Ans 7:

Madhav B Nair from Bhavans Adarsha Vidyalaya, Kakkanad, Kochi
Class : Class 5

Ans 8:

Kanzah fatimah from Tagore international school, New delhi
Class : Class 6
(B)

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Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Subject :IMO    Class : Class 6

Ans 1:

Oscar Maltman from DBSEH, dubai
Class : Class 8

Ans 2:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
But the diagonals when they cut they form a perpendicular bisector so both b and c should be answer, Souvagya

Ans 3:

NYRAH GUPTA from Sat Paul Mittal School, Ludhiana
Class : Class 7
Please explain the correct ans

Ans 4:

Karmanya Gupta from DPS, Udaipur
Class : Class 8

Ans 5:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9

Ans 6:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
There seems to be an error because the synopsis tells that the answer should be (c), but her it shows that the answer is (b). Please explain- Shourya Ganesh

Ans 7:

Anamkhan Mulla from Navrachna Sama, Vadodara
Class : Class 7

Ans 8:

Pranit Sinha from Montfort School, Roorkee, Haridwar
Class : Class 6
The lines of symmetry in a rhombus are from a vertex to the opposite vertex. So there will be two lines of symmetry.⇒ Two lines of symmetry are it's diagonals.

Ans 9:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
i think the answer is B.I too have a doubt

Ans 10:

Ritabrata Das from OPJS, Angul
Class : Class 7
explain to me pls.

Ans 11:

Navya from Gyanshree, Noida
Class : Class 6

Ans 12:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10
shourya ganesh the ans. should be option B only because when we join the opposite vertices or draw the diagonals we get the symmetrycal line of the rhombus

Ans 13:

Mayank Pati from Krishna Public School Dunda Raipur, Raipur
Class : Class 8
TH SYNOPSIS TELLS US THAT OPTION {C} IS CORRECT BUT THE CORRECT ANSWER GIVEN IS OPTION{B} . PLEASE VERIFY.

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Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Subject :IMO    Class : Class 6

Ans 1:

Shaurya from Mris 51 Gurugram, Gurugram
Class : Class 7
What you call this is Pagalpanti I am just joking dont take it seriously because I know that this is a public form

Ans 2:

Shaman Amin from SDM school, Mangalore
Class : Class 10
There are only 2 PAIRS of line which are parallel

Ans 3:

Rithvik krishna the great mathematician from PSBBSSS, Chennai
Class : Class 8
there are only two parallel lines

Ans 4:

Deepak Iyer from HFS Powai, Mumbai
Class : Class 7
does not make sense

Ans 5:

Aanya from DAV, Gurgaon
Class : Class 8
There are 3 three pairs of parallel lines. One is the smallest line in the figure joining the two lines.

Ans 6:

Kumar Krishiv from Apeejay School, Noida
Class : Class 8

Ans 7:

Mishika Pal Choudhury from Delhi Public School, Vasant Kunj, New Delhi
Class : Class 6
God! SOF is making so many mistakes! Now my score is 54. In IEO and NSO also there were a lottttttttttt of mistakes

Ans 8:

ARNAV JAIN from Somerville school, noida
Class : Class 6
OF COURSE 2 PAIRSEASY PEASY

Ans 9:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
Easy peasy lemon squeezy! Answer is 2 BUT SOF why you are showing WRONG?SOF RECORD NO. OF MISTAKES DONE BY YOU! THIS IS WRONG!!!! Answer shown is C but then there are only two parallel lines. SOLUTION CORRECT BUT ANSWER WRONG!!!!!!!!!!!!!! THAT"S WRONG!

Ans 10:

Anamkhan Mulla from Navrachna Sama, Vadodara
Class : Class 7

Ans 11:

Kumar Krishiv from Apeejay School, Noida
Class : Class 8
HOW IS THIS POSSIBLE!!!

Ans 12:

Swastik Sharma from Modern Vidya Niketan 17, Faridabad, Faridabad
Class : Class 8
yes the answer should be a because in the solution it is written that 2 pair of parallel lines are there and they are saying that the answer is c which has 3pair of parallel lines .now the score of my test is 54/60.The answer should be ( a )option

Ans 13:

Nimisha Tambe from Narayana vidyalayam, Nagpur
Class : Class 8
it is showing ans is C but in solution only 2 pairs are shownwhat is this??????????

Ans 14:

Swastik Sharma from Modern Vidya Niketan 17, Faridabad, Faridabad
Class : Class 8
Yes ,in the solution it is written only two pairs but in the answer key it is written 3 pairs.Now my score in this test 55/60

Ans 15:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Yes in the solution also they are saying there are two pairs of parallel lines There are two pairs of parallel lines

Ans 16:

Shreyas V Poojary from Sri Sri Ravishankar Vidya Mandir , Bangalore
Class : Class 9

Ans 17:

Mishika Pal Choudhury from Delhi Public School, Vasant Kunj, New Delhi
Class : Class 6

Ans 18:

ARNAV JAIN from Somerville school, noida
Class : Class 6
There are only 2 pairs of parallel lines in the given figure

Ans 19:

Dhruva Rojekar from Bombayscottishschool , Mumbai
Class : Class 7
there are only two parallel lines

Ans 20:

nandini from father agnel school, Noida
Class : Class 7

Ans 21:

Aditya Sai Kedarisetty from Sri Kumarans childrens Academy DKS, Bangalore
Class : Class 7
it is 2 ,,, they are wrong

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Sarakshi Pani from JHTS, JAMSHEDPUR
Subject :IMO    Class : Class 5

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Sarakshi Pani from JHTS, JAMSHEDPUR
Subject :IMO    Class : Class 5

Ans 1:

AREEN from BOLTON, HYDERABAD
Class : Class 6

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Options are wrong.

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Shayan Bari from Kendriya Vidyalaya, Katihar
Subject :IMO    Class : Class 6

Ans 1:

Iniya from Sunshine Chennai Senior Secondary School, Chennai
Class : Class 9
why is it B? 🧐

Ans 2:

Rahul Wariar from Private International English School, Abu Dhabi
Class : Class 1
Every natural number will be a whole number. ex- 1,2,3,4,5,6... (natural numbers) are all whole numbers.However, every whole number is not a natural number.

Ans 3:

Shaurya Veer from Army Public School ASC C and C , Bangalore
Class : Class 10

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Kavitharini Joseph from HUS, Chennai
Subject :IMO    Class : Class 5

Ans 1:

Prateeshtha Ghosh from Samhita Academy, Bangalore
Class : Class 8
28 into 5 + 14

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is A because the number of words Veronica can type is (28 X 5)+28/2=140+28/2=140+14=154.

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Rama Panda from tathva, tokyo
Subject :IMO    Class : Class 4

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