International Maths Olympiad Forum By SOF Olympiad Trainer - Page 534
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Rayan Bari from Kendriya Vidyalaya, Katihar
Subject :IMO    Class : Class 2

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Dhruv from Springdales, Dubai
Subject :IMO    Class : Class 5

Ans 1:

J Srinidhi from narayana, Hyderabad
Class : Class 7
Area of rectangle ABCD = (18 × 8) cm2 = 144 cm2 total area = (144 72) cm2 = 216 cm2

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Answer is b because the length of the bigger rectangle is 18 cm and breadth is 8 cm. The length of the smaller rectangle is 30 cm-18 cm=12 cm and breadth is 8 cm-2 cm=6 cm. The area of the bigger rectangle is 18 cm X 8 cm=144 sq. cm and the area area of the smaller rectangle is 12 cm X 6 cm=72 sq. cm. Area of the figure given is 144 sq. cm+72 sq. cm=216 sq. cm.

Ans 3:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
Bala Bala Shaitan Ka Saala

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hridayanand shaw from Adamas International School, KOLKATA
Subject :IMO    Class : Class 7

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VIBHU SHARMA from Mount St Mary, NEW DELHI
Subject :IMO    Class : Class 7

Ans 1:

RIYA D MARGHADE from TVS VELAMMAL VIDYALAYA PONNERI, CHENNAI, CHENNAI
Class : Class 2
6 IS THE ANSWER

Ans 2:

NYRAH GUPTA from Sat Paul Mittal School, Ludhiana
Class : Class 7
The answer is 6 only and is given in solution also but marked wrong

Ans 3:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
Answer should be only 6 and not 6 1/8.

Ans 4:

Shashi Shekar B S from Carmel School, BANGALORE
Class : Class 10

Ans 5:

archana shaji from nps , Bengaluru
Class : Class 8
Yes i agree . 6 should be the answer

Ans 6:

Shrihan from Sardar patel Vidyalaya, delhi
Class : Class 8

Ans 7:

Rayan Chanda from Salt Lake School, Kolkata
Class : Class 9
the answer should obviously be 6.

Ans 8:

arnav raj sharma from gulibulium school, new york
Class : Class 8
the answer is 6

Ans 9:

Akshara from NPS, Bengaluru
Class : Class 8
Yes , I agree . The answer should be 6 and not 6 1/8.

Ans 10:

Kashish Kathuria from Delhi Public School, Bangalore
Class : Class 9
answer should be 6 and not 6 1/8

Ans 11:

Debaditya CHAKRABARTI from Shishya beml public school, Bengaluru
Class : Class 7

Ans 12:

Nishchay Gupta from Cambridge Court World School, Jaipur
Class : Class 6
Yes the answer should be 6 not 6 1/8

Ans 13:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 8
6

Ans 14:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7
answer should be 6

Ans 15:

Akashdeep Das from Gems Modern Academy, Dubai
Class : Class 8
answer = 6, question is incorrect

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Shreyas Singh from Podar International School, Pune
Subject :IMO    Class : Class 5

Ans 1:

Aaditva from Vasant Valley School, New Delhi
Class : Class 8
AAAAAAAAAA

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Shreyas Singh from Podar International School, Pune
Subject :IMO    Class : Class 5

Ans 1:

BHAVYA from iswk, Oman
Class : Class 6
D.65.625 km. because if you convert all the decimals into like decimals and then add, 65.625 is what you are going to get.

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Shreyas Singh from Podar International School, Pune
Subject :IMO    Class : Class 5

Ans 1:

Samanyu from NPSI, Singapore
Class : Class 5
The answer can be both

Ans 2:

Naitik Jindal from DELHI PUBLIC SCHOOL RK PURAM, DELHI
Class : Class 8
answer can be A too

Ans 3:

Kushagra Joshi from Aurum the Global school, Haldwani
Class : Class 8
Answer is 28 because rest all are multiple of 3 except 28

Ans 4:

shubham kakkar from bhawan vidyalaya, chandigarh
Class : Class 5

Ans 5:

Sanyog Laddha from Global Indian International School, Pune
Class : Class 6

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Shreyas Singh from Podar International School, Pune
Subject :IMO    Class : Class 5

Ans 1:

JOIS GEORGE from Dimension, Singapore
Class : Class 5
isn't it C, because boys are a group, in it there are other groups like students and athletes?

Ans 2:

Sahasra Shanker from KV IIT, Chennai
Class : Class 6
Correct answer is D as per Sof-Olympiad.SolutionSome boys are studentsSome boys are athletesSome students are boysSome students are athletesSome athletes are boysSome athletes are students

Ans 3:

Fareeha siddiqua from Janki Devi public school , Mumbai
Class : Class 5
ans is d and the solution is so pakaaw and unreliable to understand however i got it right

Ans 4:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is A.

Ans 5:

Aaditva from Vasant Valley School, New Delhi
Class : Class 8
Answer is A

Ans 6:

swastik Biswal from St Joseph Convent Higher Secendary school, Sambalpur
Class : Class 5

Ans 7:

Aneek Dey from Little Angel School, karimganj
Class : Class 6
Not all athletes and students are boys, some are girls. Not all students are athletes, either. Vice versa. So, option D is the only Venn diagram that correctly and accurately explicates this. Observation skills and general knowledge are primarily tested in this type of question.

Ans 8:

Aneek Dey from Little Angel School, karimganj
Class : Class 6

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NYRAH GUPTA from Sat Paul Mittal School, Ludhiana
Subject :IMO    Class : Class 5

Ans 1:

Shreyas Krishna Jayaraman from Bala Vidya Mandir, Adyar, Chennai
Class : Class 9
ans is d because french and german are european languages

Ans 2:

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

Ans 3:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is D.

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ishi gupta from DPS NOIDA, NOIDA
Subject :IMO    Class : Class 4

Ans 1:

Swati Pal from DPS, Bangalore
Class : Class 4

Ans 2:

Aarav Gupta from Delhi Public School Bangalore East, Bangalore
Class : Class 4
ANS IS D

Ans 3:

rudra from THE KERAL ENGLISH PEOPLE EDUCATION S, BHAVANGER
Class : Class 5
My Answer is D

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