International Maths Olympiad Forum By SOF Olympiad Trainer - Page 371
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Mihishkaa from PSBBLLA, Bangalore
Subject :IMO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(B): Let Breadth be x and,
Length = (3/2) x
Perimeter = 2(l + b) = 120 m
2(1.5x + x) = 120

5x = 120
x = 120 ÷ 5 = 24 m
Breadth = x = 24 m
Length = 1.5 × 24 = 36 m
Area = length × breadth = 24 × 36 = 864 sq. m
 


Ans 2:

ANUSKA from DPS NACHARAM, HYDERABAD
Class : Class 8
okay i understand

Ans 3:

Sowmya Chandrasekaran from DAV GIRLS SENIOR SECONDARY SCHOOL, Chennai
Class : Class 6
same ans in sol

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AGNIVA MANDAL from DPS Megacity, Kolkata
Subject :IMO    Class : Class 6

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M PRADEEP KUMAR from Tswrs boys gadwal , Gadwal
Subject :IMO    Class : Class 1

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): Let’s count the total number of pencils shown in the given picture. There are 22  pencils.
Now, let’s see which abacus is showing 22.
So, Option A is the right answer.


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Satvik Agrawal from Delhi Public School, bhopal
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(C): Weight of 2 cylinders and 1 cone = 500g

Weight of 4 cylinders and 3 cones = 1300g

⇒ Weight of ( 2 cylinders and 1 cone  + 2 cylinders and 1 cone  + 1 cone )  = 1300g
⇒ 500g + 500g + Weight of 1 cone  = 1300g

⇒  Weight of 1 cone  = 1300 g - 1000 g = 300 g

Also, 

Weight of 2 cylinders and 1 cone = 500g

⇒ 300 g + Weight of 2 cylinders  = 500 g

⇒ Weight of 2 cylinders = 500g - 300 g = 200 g

⇒ Weight of 1 cylinder = 200 / 2 = 100 g 
 


Ans 2:

dveep jain from mindful gurukul, Mumbai
Class : Class 4
Answer is C

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Satvik Agrawal from Delhi Public School, bhopal
Subject :IMO    Class : Class 4

Ans 1:

Gunnit Kant from DPS, Nerul, Navi Mumbai
Class : Class 5
answer is c because 15000-12000=3000

Ans 2:

Advik Dixit from Ryan International School Sanpada Navi Mumbai , NAVI MUMBAI
Class : Class 5
c

Ans 3:

Bhanu teja from Birla Open Minds, Hyderabad
Class : Class 7
where 120000 came from

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Nikita Neelakant from Elpro International school , Pune
Subject :IMO    Class : Class 6

Ans 1:

Ayan Vohra from Bhavan Vidyalaya , Chandigarh, chandigarh
Class : Class 8
I think the admin lost his mind

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(D): Total fraction of wall painted by Ritu and Rashmi 


Ans 3:

animikh from don bosco school , kolkata
Class : Class 6
ANSWER IS D

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Mihishkaa from PSBBLLA, Bangalore
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(B): 


Ans 2:

Pratyush Sablok from Delhi Public School Banglore East, Bangalore
Class : Class 6
b

Ans 3:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
answer is B

Ans 4:

Savya Vishal Neha Babar from HPS Begumpet, Hyderabad
Class : Class 4

Ans 5:

Atharv Rai from The Foundation School , Bangalore
Class : Class 4
its (b)

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Satvik Agrawal from Delhi Public School, bhopal
Subject :IMO    Class : Class 4

Ans 1:

Yatindra G from SBOA, Chennai
Class : Class 4
ARE YOU MAD STUDENT?! XL(40) IS MEANINGFUL DINGUS!

Ans 2:

Dhruv Gupta from RRK Senior Sec School, Chandausi
Class : Class 4

Ans 3:

SRUJAN VIJAY DESAI from G G INTERNATIONAL SCHOOL, PIMPRI PUNE
Class : Class 4
please explain it

Ans 4:

Student from School, City
Class : Class 5
l think a,b,c are wrong so d is the correct answer

Ans 5:

Nihid Binoj from DPS International School Singapore, Singapore
Class : Class 4
It says that X CANNOT be subtracted from L which is wrong as X - L is meaningful and forms XL (40). So (c) is the answer.

Ans 6:

Raghav Karwa from Gurukul Olympiad School, Aurangabad
Class : Class 6
that is true I clicked something wrong

Ans 7:

ibrahim akhil pathan from kaka's international school, pune
Class : Class 4

Ans 8:

Soumya Gupta from Prudence School Ashok Vihar, New Delhi
Class : Class 5
very difficult

Ans 9:

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

Ans 10:

Sarthak Shome from Harvest International, Bangalore
Class : Class 7
SO THAT IT IT IS A ERROR

Ans 11:

Mudit from SSRVM, Bangalore
Class : Class 4
X can be subtracted from L and that makes it 40. Please review

Ans 12:

Tanusha from Royaal World School , Pune
Class : Class 4
I think that c is right ans because X can be subtracted by L and C only

Ans 13: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(C): Symbol X can be subtracted from L and C only.


Ans 14:

Shriyan Sengupta from Julien Day School, Kalyani, Kalyani
Class : Class 6
ham o rubela theke sabdhane thakun khub baje rog

Ans 15:

VISHISHT S PILLAI from Bethany High School, Bangalore
Class : Class 4
Question is wrong A,B,C is correct

Ans 16:

Arnav majumdar from nps jpnagar, BANAGALORE
Class : Class 8

Ans 17:

Parth Kathuria from Kothari International School, Noida
Class : Class 4
(C): Symbol X can be subtracted from L and C only.

Ans 18:

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

Ans 19:

Nitai Pandey from DAV CENTENARY PUBLIC SCHOOL KUTESHWAR, KATNI
Class : Class 7

Ans 20:

Shriyan Sengupta from Julien Day School, Kalyani, Kalyani
Class : Class 6
m

Ans 21:

lavanya from spring dales, Amritsar
Class : Class 2
kindly send its explaination

Ans 22:

Student from School, City
Class : Class 5
I can’t understand

Ans 23:

Sahil Joshi from Abhinav Vidyalay English Medium School, Pune
Class : Class 5

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Satvik Agrawal from Delhi Public School, bhopal
Subject :IMO    Class : Class 4

Ans 1:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
i did D but they marked it C

Ans 2:

Akanksha A from Chrysalis High, Bangalore 560066
Class : Class 5
it is d

Ans 3:

Agastya Vinayak from DPS Rohini, Delhi
Class : Class 8

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Sanchay Agarwal from Delhi Public School, Roorkee
Subject :IMO    Class : Class 8

Ans 1:

Anshuman D from MVM, Hyderabad
Class : Class 9
It is 9

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