International Maths Olympiad Forum By SOF Olympiad Trainer - Page 39
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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 tbs, 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 7

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

Ans 1:

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

Ans 2: (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 
 


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

Ans 1:

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

Ans 2:

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

Ans 3:

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

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

Ans 1:

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

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(B): 


Ans 3:

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

Ans 4:

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

Ans 5:

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

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

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:

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

Ans 7:

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

Ans 8:

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

Ans 9: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

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


Ans 10:

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

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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

Ans 15:

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 16:

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

Ans 17:

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

Ans 18:

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

Ans 19:

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

Ans 20:

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

Ans 21:

Arnav majumdar from nps jpnagar, BANAGALORE
Class : Class 8

Ans 22:

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

Ans 23:

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

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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:

Agastya Vinayak from DPS Rohini, Delhi
Class : Class 8

Ans 3:

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

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Maneet patil from Delhi public school, Navi Mumbai
Subject :IMO    Class : Class 4

Ans 1:

Rachel from Mount litera Zee School Goa, Goa
Class : Class 7
you should use the number atleast once. so the greatest no u can make from the numbers provided is 5530. then multiply it with 15. you get the answer.

Ans 2:

Maneet patil from Delhi public school, Navi Mumbai
Class : Class 5
You have wrong you have.told that (using one digit at least once)but you have used 5 double time

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Sarah Nawalkar from Rajhans Vidhyalaya, Mumbai
Subject :IMO    Class : Class 4

Ans 1:

Nivritti Agarwal from National public school, Bangalore
Class : Class 7
A): Amount of money Bhavya saves in one month = ₹ (2550 - 1875) = ₹ 675∴ Her savings in one year= ₹ (12 × 675) = ₹ 8100Her savings in 3 years = 3 × 8100= ₹ 24300

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(A): Amount of money Bhavya saves in one month = ₹ (2550 - 1875) = ₹ 675
∴ Her savings in one year
= ₹ (12 × 675) = ₹ 8100
Her savings in 3 years = 3 × 8100
= ₹ 24300


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