International Maths Olympiad Forum By SOF Olympiad Trainer - Page 499
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Devananda from Queen of angels bharuch, bharuch
Subject :IMO    Class : Class 5
Fr

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Pranav Preetham from APL Global School, Chennai
Subject :IMO    Class : Class 4

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UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Subject :IMO    Class : Class 9

Ans 1:

Kashish from Mgps, Jaipur
Class : Class 9
B

Ans 2:

Abhiram C A from Jindal Vidya Mandir, bellary
Class : Class 9
D

Ans 3:

Kashish from Mgps, Jaipur
Class : Class 9
B

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Aniket Gupta from National Public School, Bangalore
Subject :IMO    Class : Class 8

Ans 1:

Arnav from Head Start Educational Academy, Bengaluru
Class : Class 5
no step is wrong.

Ans 2:

Rudransh Kashyap from DPS RK Puram, Ghaziabad
Class : Class 9
b

Ans 3:

Mudit garg from La blossoms school, Jalandhar
Class : Class 7

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Ankit kumar Jha from Ryan International School , Ghaziabad
Subject :IMO    Class : Class 7

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Arnav kaul from Chirec, Hyderabad
Subject :IMO    Class : Class 5

Ans 1:

Aarul from INS, Pune
Class : Class 4
correct answer is B.

Ans 2:

PANAV TANEJA from Ivy world school, Jalandhar
Class : Class 5
Correct answer is option B

Ans 3:

sheel gupta from DPS, vasant kunj, delhi
Class : Class 9
the correct answer of this question is B

Ans 4:

Vihaan from K R Mangalam World School Vaishali, Ghaziabad
Class : Class 9
Yeah, it should be A.

Ans 5:

akashdeep from Presidium School , New Delhi
Class : Class 7
b as 1st and 2nd have 2 lines of symmetry or more

Ans 6:

Nirav from TFS, Bangalore
Class : Class 7
answer should be b)

Ans 7:

YUVRAJ MATTA from DPS EAST OF KAILASH , NEW DELHI
Class : Class 5
our answer is correct but your answer is wrong . The answer should be B

Ans 8:

TRISHA SINGH from St. Joseph Shaktinagar, SONEBHADRA
Class : Class 7
SOF IS RIGHT THIS TIME GUYS.SO STOP ARGUING ON THIS QUESTION.

Ans 9:

Arnav from Somerville noida, noida
Class : Class 10
correct answer is b

Ans 10:

Adi Parandkar from Blue Ridge Public School, pune
Class : Class 5
Correct answer is B

Ans 11:

Aradhya Gautam from PIS, Thane
Class : Class 5

Ans 12:

Vallabh Agrawalla from Sai International School, Bhubaneswar
Class : Class 8
The answer should be A. Out of the 4 figures only the square has 2 lines of symmetry. The other figures like the parallelogram and the F have 0 lines of symmetry. The isosceles triangle has one line of symmetry. And the parallelogram has 0 lines on symmetry. On the vertical axis, when we divide it into 2 parts. 1 part is higher at the upper side and the second one is higher at the lower side. The same happens with the horizontal axis.

Ans 13:

Arnav from Somerville noida, noida
Class : Class 10
please check it,its b

Ans 14:

RAKSHIKA JHA from St.XAVIER , ARARIA
Class : Class 5
Only square is a figure in this figures that has only two lines of symmetry

Ans 15:

vdvd from Suncity School, Gurgaon
Class : Class 5
CORRECT ANSWER IS B.CORRECT ANSWER IS B

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Devananda from Queen of angels bharuch, bharuch
Subject :IMO    Class : Class 5

Ans 1:

ARJUN SHARMA from sunvalley international school, Delhi
Class : Class 8
HOW TO DO THIS ?????????

Ans 2:

Prateeshtha Ghosh from Samhita Academy, Bangalore
Class : Class 8

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yagna from DPS, Surat
Subject :IMO    Class : Class 8

Ans 1:

Tanmay singh from DPS Visakhapatnam , Visakhapatnam
Class : Class 9

Ans 2:

Anush Pattanayak from Bhiwani public school, Bhiwani
Class : Class 8
answer should be 62

Ans 3:

Lakshya Sahu from St Joseph English Medium Senior Secondary School, Mahoba
Class : Class 8
62

Ans 4:

Archisman Biswas from Santipur Municipal High School, Nadia
Class : Class 9
This is not fair. Solution is correct but the answer is wrong. It is 62.

Ans 5:

from D.P.S delhi public school kuwait, Vishakhapattanam
Class : Class 8
Sof has many more mistakes like this

Ans 6:

Angshu from Dehli Public School Bangalore East, Bangalore
Class : Class 9
This is not good. SOF has too many mistakes like this. Though the solution says 62, the answer is registered as 52. Please fix this.

Ans 7:

Ditya Goel from Presidium, Gurgaon
Class : Class 8
Answer is 62

Ans 8:

Anirudh from 989820Delhi Pubic school Rohini , Delhi
Class : Class 8
62

Ans 9:

Prachi from Holy Child Public school, Faridabad
Class : Class 10
Solution itself shows 62but it is making it wrong

Ans 10:

Hrishikesh Mavily from DPS, Bangalore
Class : Class 8
It is 62 not 52

Ans 11:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
62

Ans 12:

Yashi from Chrysalis High, Bangalore
Class : Class 8
62 is the answer. 52 x 52 = 2704

Ans 13:

Nikhil Date from Lilavatibai Podar High School, Mumbai
Class : Class 8
Yes, it is 62

Ans 14:

Vaastav Mishra from BMPS Taxsila, Bhubaneswar
Class : Class 9
62 is correct

Ans 15:

Arkajyoti Das from techno, Cooch Behar
Class : Class 9
wrong answer

Ans 16:

Shreya Shruti from Airforce school , Bengaluru
Class : Class 8
answer should be 62!!!!!!!!!

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Satyaki Bandopadhyay from Don Bosco ParkCircus, Kolkata
Subject :IMO    Class : Class 3

Ans 1:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
The correct answer is D because the total length of the large rectangle is 160 meters and the total length of the small rectangle is 100 meters

Ans 2:

Rijrashwa Sreejith from Devamatha C M I Public School, Thrissur
Class : Class 4
Please use proper words. It is perimeter. Not total length. Total length is the sum of the two longer sides.

Ans 3:

Samaira Ahuja from Gyanshree, Noida
Class : Class 3
160 is the perimeter of the big rectangle and not the length

Ans 4:

RAGHAV VARSHNEY from CITY MONTESSORI SCHOOL GOMTINAGAR LUCKNOW, Lucknow
Class : Class 3
A and C both are correct. it should be perimeter or boundary.

Ans 5:

Hiza Goel from MRIS-14, Faridabad
Class : Class 3
the wordings are not correct.. there is confusion with the word total length.. it means the length of the rectangle or the perimeter.. it is unclear.

Ans 6:

ANSHUL TANWAR from ST TERESA CONVENT SCHOOL GHAZIABAD, NOIDA
Class : Class 3
lenght should be replaced by parameter. ques.wording is wrong

Ans 7:

Rishaank Goel from Lotus valley , Noida
Class : Class 3

Ans 8:

IAMLOST from ABC, Pune
Class : Class 8
A and C are correct.Please write unambiguous lines. Write boundary or perimeter to be precise.as children view rectangle in length and breadth only.

Ans 9:

inaira heredia from Jamnabai narsee international school, MUMBAI
Class : Class 5
A and C are Correct

Ans 10:

Pragnay Priyadarshi from Quantum Leap School, HYDERABAD
Class : Class 7
Please use the correct wordings, Perimeter. It’s just confusing to deal with word length.

Ans 11:

yuvaan PALIWAL from gyaananda school, gurugram
Class : Class 3

Ans 12:

inaira heredia from Jamnabai narsee international school, MUMBAI
Class : Class 5
Yes both A and C are Correct

Ans 13:

Varenyam Wadhwa from Hansraj Model School, Punjabi Bagh, New Delhi
Class : Class 3

Ans 14:

Yash from Dps, Noida
Class : Class 2
both A and C are correct

Ans 15:

Rishaank Goel from Lotus valley , Noida
Class : Class 3
160 is the perimeter not the length

Ans 16:

Vedansh Deewan from Stemfield International School , Jabalpur
Class : Class 3
A should be correct???

Ans 17:

Eshan Ghosh from Don Dosco, Berhampore
Class : Class 3
Both A and C are correct

Ans 18:

Yash from Dps, Noida
Class : Class 2
sorry I was wrong the ans is d only because total length is here equal to perimeter for this condition

Ans 19:

yuvaan PALIWAL from gyaananda school, gurugram
Class : Class 3

Ans 20:

Myra Srivastava from Manav Rachna International school , Gurgaon
Class : Class 3
Option is confusing. A rectangle length is not the same as rectangle perimeter...

Ans 21:

Vaishnavi singh from All saint international school , Alwar
Class : Class 5
A

Ans 22:

Akshara Dalan from DR D Y PATIL INTERNATIONAL SCHOOL NERUL, NAVI MUMBAI
Class : Class 3
The word should be PERIMETER as the word TOTAL LENGTH [mentioned] can mean the sum of the 2 sides of the rectangle and can not be understood very well.So, according to me the answer can be both A as well as C.

Ans 23:

Agriye Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Class : Class 4
Answer is d.

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Ashish Pawar from Rajmata Jijau English School, Jafrabad
Subject :IMO    Class : Class 5

Ans 1:

Jathin from Chrysalis High, Bengaluru
Class : Class 9
Both figures A and B are same.So,how can we get to know the difference between them ?

Ans 2:

Arunava hury from KV1 saltlake , Kolkata
Class : Class 6
A

Ans 3:

Pranav Pradeepkumar Bagrecha from St. Paul's International School, Ichalkaranji
Class : Class 9
Answer is option A

Ans 4:

Baneet pal singh from Delhi public school, Chandigarh
Class : Class 8
Ans is a because in A option the square's lines are dotted just like in the question's image 1

Ans 5:

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Class : Class 4
whats the difference between option A and B

Ans 6:

Pranav Pradeepkumar Bagrecha from St. Paul's International School, Ichalkaranji
Class : Class 9
Answer is option A

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