International Maths Olympiad Forum By SOF Olympiad Trainer - Page 496
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Shrehan from The Shri Ram School, Gurgaon
Subject :IMO    Class : Class 4

Ans 1:

Armaan from Tagore international school, New Delhi
Class : Class 4
(master ans

Ans 2:

Dhrona from Ryan international , Nasik
Class : Class 7

Ans 3: (Master Answer)

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

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sanjana from NARAYANA E TECHNO , Chennai
Subject :IMO    Class : Class 3

Ans 1:

Tosani Ghosh from Kohana International School, Kawasaki
Class : Class 4

Ans 2:

Ira from Sanskriti Hyderabad, Hyderabad
Class : Class 6
the ans should be D

Ans 3:

Advika Narkar from VIBGYOR High Airoli, Navi Mumbai
Class : Class 5
SOF you don't know addition 12 9 = 21

Ans 4:

ARYAN P from DPS E-CITY Bangalore, Bangalore
Class : Class 4
c

Ans 5:

ANIMESH BEHERA from TIMPANY, VISAKHAPATTNAM
Class : Class 3
Sof you don,t know addition 12 9=21

Ans 6:

Advika Narkar from VIBGYOR High Airoli, Navi Mumbai
Class : Class 5
Actually ans IS C but you have given wrong explanation why.In the biggest triangle there are 5 triangles

Ans 7:

Akshari Patil from VIBGYOR HIGH Marathalli, Marathalli
Class : Class 4

Ans 8:

Ira from Sanskriti Hyderabad, Hyderabad
Class : Class 6

Ans 9:

Bhargavi Vaibhav Zade from R. S. MUNDLE ENGLISH SCHOOL, NAGPUR
Class : Class 5

Ans 10:

PnP from Vibgyor, Bengalore
Class : Class 3
Answer is 20 option b ,but there is a mistake in the solution, but final answer is c.

Ans 11:

PnP from Vibgyor, Bengalore
Class : Class 3
Sof really doesn't know addition true, but i am sure it is just a printing mistake

Ans 12:

Ira from Sanskriti Hyderabad, Hyderabad
Class : Class 6

Ans 13:

Avni Narayan from The Foundation School, Bangalore
Class : Class 3
There is a mistake.9 4 5 1 2=21. The 9 should have been 8.Then only 20 will come.

Ans 14:

Parth Kathuria from Kothari International School, Noida
Class : Class 4
Answer is C

Ans 15:

Avantika Raj from Delhi Public School, Bengaluru
Class : Class 7

Ans 16:

from DPS Greater Noida,
Class : Class 3
Right answer is A

Ans 17:

Ira from Sanskriti Hyderabad, Hyderabad
Class : Class 6

Ans 18:

Arvi from Isbe , Europe
Class : Class 3
The solution in the left side should be 8 triangles not 9.

Ans 19:

aanya Paliwal from n h GOEL world school, RAIPUR
Class : Class 1

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sanjana from NARAYANA E TECHNO , Chennai
Subject :IMO    Class : Class 3

Ans 1:

Bhargavi Vaibhav Zade from R. S. MUNDLE ENGLISH SCHOOL, NAGPUR
Class : Class 5
MY ANSWER IS [A] TOO ..

Ans 2: (Master Answer)

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

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subhanga from dps numaligarh, golaghat
Subject :IMO    Class : Class 8

Ans 1:

Ms. Anoushka Shetty from Lilavatibai Podar High School, Mumbai
Class : Class 8
Since it is in inverse proportion, 12:x::30:20 12×30=20x 360÷20=x x=18 More men= 18-12 =6 men more required

Ans 2:

Nikhil Raj from JNV japla, Japla palamu
Class : Class 8
B

Ans 3:

Jessica from Delhi Public School Mysore, Mysore
Class : Class 8
B. 6

Ans 4:

VIDHAN KUMAR PRAJAPAT from MAGADH INTERNATIONAL SCHOOL, TEKARI (GAYA), GAYA
Class : Class 8
B. 6

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subhanga from dps numaligarh, golaghat
Subject :IMO    Class : Class 8

Ans 1:

NAMAN SURANA from WITTY INTERNATIONAL SCHOOL, Udaipur
Class : Class 4

Ans 2: (Master Answer)

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

Ans 3:

Rakshit Gupta from vidhya ashram, jaipur
Class : Class 8

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subhanga from dps numaligarh, golaghat
Subject :IMO    Class : Class 8

Ans 1:

Aditya kumar from Sapphire International School, Noida
Class : Class 8
Hi friend, the answer for this is a^2 - 2ab - c^2 + b^2 = [a^2 - 2ab + b^2] - c^2 = (a-b)^2 - c^2 = (a-b+c)(a-b-c) As per options, answer is (a-b+c)

Ans 2:

VIDHAN KUMAR PRAJAPAT from MAGADH INTERNATIONAL SCHOOL, TEKARI (GAYA), GAYA
Class : Class 8
A. (a-b+c) (a-b+c)(a-b-c)

Ans 3:

SuryaKiran M.S from , Abudhabi
Class : Class 5
(a-b+c)

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subhanga from dps numaligarh, golaghat
Subject :IMO    Class : Class 8

Ans 1:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7

Ans 2:

SRIJA SRINIVASAN PAKU from KENDRIYA VIDHYALAYA ASHOK NAGAR, Chennai
Class : Class 8
how?

Ans 3:

subhanga from dps numaligarh, golaghat
Class : Class 9

Ans 4:

Prateeshtha Ghosh from Samhita Academy, Bangalore
Class : Class 8
Can someone please post the solution? I am not able to understand this question.

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from ,
Subject :IMO    Class : Class 2

Ans 1: (Master Answer)

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

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SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH
Subject :IMO    Class : Class 1

Ans 1: (Master Answer)

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

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SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH
Subject :IMO    Class : Class 1

Ans 1:

taalish singh from kothari school, noida
Class : Class 7

Ans 2: (Master Answer)

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

Ans 3:

Malavya Chaturvedi from Study Hall, Lucknow
Class : Class 7

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