International Maths Olympiad Forum By SOF Olympiad Trainer - Page 32
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Saumya Namdeo from Jai Bharat English Medium School, Janjgir
Subject :IMO    Class : Class 4

Ans 1:

Bhanu teja from Birla Open Minds, Hyderabad
Class : Class 7

Ans 2:

Khanak Jha from Prime Academy, Mumbai
Class : Class 4
The correct answer is B 180

Ans 3:

Bhanu teja from Birla Open Minds, Hyderabad
Class : Class 7

Ans 4:

Shreeraj from ISWK, Muscat, Muscat
Class : Class 4
Option B 180

Ans 5:

Siddhi Kher from NHSS Thane, THANE
Class : Class 1
answer is B

Ans 6:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 7
The correct answer is B

Ans 7:

Oscar Maltman from DBSEH, dubai
Class : Class 8

Ans 8:

Bhanu teja from Birla Open Minds, Hyderabad
Class : Class 7
Why’s the answer is D

Ans 9:

GAIRIK GHOSH from ST. AUGUSTINE'S DAY SCHOOL, BARRACKPORE, AGARPARA
Class : Class 6
The answer for this question is 'B'

Ans 10:

dhanyashree from BVM Global, Chennai
Class : Class 5
B

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IAMLOST from ABC, Pune
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): The best estimate of 795 is  800 . 


Ans 2:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
(A) because the best estimate of 795 is 800.

Ans 3:

Yadnya Thakare from Ryan International, Pune
Class : Class 7
A is the answer

Ans 4:

dveep jain from mindful gurukul, Mumbai
Class : Class 4
(A): The best estimate of 795 is 800 .

Ans 5:

Miraya Agarwal from School of india, Bengaluru
Class : Class 4
(A) is the answer

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neel kumar from CPS, Pune
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): Given digits = 9,8,3,4
Greatest 6 digit no. formed  by these digits = 999843
Smallest 5 digit no. formed by these digits = 33489
Required difference = 999843 - 33489 = 966354


Ans 2:

Shubham Majhi from Sri Chaitanya Techno School, Bangalore
Class : Class 5
Admin is wrong , because the question given the digit used once but admin is using digit 9 multiple time which is wrong , so either question or options is wrong .

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Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Subject :IMO    Class : Class 4

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Manit Bandhu from Lotus Valley International School Noida, Noida
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): Total number of equal parts = 10
Number of shaded parts = 5


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Advait Bhasin from Pathways Gurgaon, gurgaon
Subject :IMO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): Total quantity of juice =  5L of litchi juice + 3L of guava juice = 8L  = 8000mL
8000mL juice poured in 25 glass.
Thus, quantity of juice in each glass = 8000 ÷ 25 = 320mL
 


Ans 2:

TADDRISH AICH from ADAMAS INTERNATIONAL SCHOOL, KOLKATA
Class : Class 6

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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 8
answer is c because 15000-12000=3000

Ans 2:

Advik Dixit from Ryan International School Sanpada Navi Mumbai , NAVI MUMBAI
Class : Class 9
c

Ans 3:

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

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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 5
b

Ans 3:

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

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

Ans 1:

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

Ans 2:

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 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

Shriyan Sengupta from Julien Day School, Kalyani, Kalyani
Class : Class 5
ham o rubela theke sabdhane thakun khub baje rog

Ans 9: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

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


Ans 10:

Raghav Karwa from Gurukul Olympiad School, Aurangabad
Class : Class 5
that is true I clicked something wrong

Ans 11:

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

Ans 12:

Nitai Pandey from DAV CENTENARY PUBLIC SCHOOL KUTESHWAR, KATNI
Class : Class 6

Ans 13:

Arnav majumdar from vibgyor, BANAGALORE
Class : Class 6

Ans 14:

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 15:

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

Ans 16:

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

Ans 17:

Shriyan Sengupta from Julien Day School, Kalyani, Kalyani
Class : Class 5
m

Ans 18:

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

Ans 19:

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

Ans 20:

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

Ans 21:

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

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