International Maths Olympiad Forum By SOF Olympiad Trainer - Page 634
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Sarthak from St Anthony Senior Secondary School Hiran Magri Udaipur, Udaipur
Subject :IMO    Class : Class 4

Ans 1:

Sarthak from St Anthony Senior Secondary School Hiran Magri Udaipur, Udaipur
Class : Class 8
As I know 50=L and XXXI=31.......so answer can not be b.please verify it and detail to me

Ans 2:

Paartha Murali from Udgam School, , Ahmedabad
Class : Class 2
1option is wrong2 option is also wrong because total is 1503 option is correct because value of M - 1000

Ans 3:

Paartha Murali from Udgam School, , Ahmedabad
Class : Class 2
so option 3 is correct.

Ans 4:

NIRMAY JOSEPH from St Columba's School, New Delhi , New Delhi
Class : Class 9
Yes you are right

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Shruti Rajshree from NPS Indiranagar, Bengaluru
Subject :IMO    Class : Class 4

Ans 1:

Rishika Maurya from Dps, Vadodara
Class : Class 7
IT WILL BE- B BECAUSE IF ANY NUMBER IS MULTIPLE OF 2 AND 3 IT IS ALSO MULTIPLE OF 6 FOR EXAMPLE-2 X 3= 6 3 X 2=6 6 X 1 =6 SO THE NUMBER WHICH IS THE MULTIPLE OF 2 AND 3 WILL ALSO BE THE MULTIPLE OF 6

Ans 2:

Priyahna from St francis school , Indirapuram
Class : Class 4
12 is also the multiple of 2 and 3 and it is also multiple of 122x6=12 3x4=12 12x1=12

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Samarth from DPS, Noida, GAUTAMBUDH NAGAR
Subject :IMO    Class : Class 3

Ans 1:

AJAY LAHOTI from SPRINGDALES DUBAI, Dubai
Class : Class 6
How? Can you explain?

Ans 2:

Pavani Chetan Kurawatti from Universal High School, Mumbai
Class : Class 3

Ans 3:

Arihant Medhi from Maharishi Vidya Mandir, Rangia
Class : Class 6
Don't just shout . See the answer.

Ans 4:

Rajveer from DPS, Bengaluru
Class : Class 3
C

Ans 5:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
I didn't understand . Someone explain. I want master answer or simple answer of Question 31 by Shiven .

Ans 6:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
Oh! Now I know! answer is C as 6 * 2 = 12! (Key - * - Multiplication sign)

Ans 7:

Arshia Kochhar from Delhi Public School Dwarka , New Delhi, Dwarka
Class : Class 6
red circle= * =5*5 =25, o*o=4*4=16multiply each number in column. Answer will be 6*2=12

Ans 8:

IAMLOST from ABC, Pune
Class : Class 8
Please explain

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B Murali Srinivas from ,
Subject :IMO    Class : Class 6

Ans 1:

JIVESH KUMAR from Cochin refineries school , Kochi
Class : Class 6
every natural number is a whole number

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Thamognya from nps, Singapore
Subject :IMO    Class : Class 5

Ans 1:

Ayush Kumar from Maria Assupta Sr. Sec. Convent School, KASHIPUR
Class : Class 5
The answer is option B.

Ans 2:

Gauri Singh from St. John's School, Marhauli, Varanasi
Class : Class 10
A. 0

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Shaurya Manjkhola from St Kabir Public School Chandigarh, Chandigarh
Subject :IMO    Class : Class 6

Ans 1:

Naumaan ahmed from Oyesters international, Pune
Class : Class 6
12 days

Ans 2:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10

Ans 3:

JIVESH KUMAR from Cochin refineries school , Kochi
Class : Class 6
12 days

Ans 4:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
27

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Ojas Golyan from Indian school Sohar, Sohar
Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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Ojas Golyan from Indian school Sohar, Sohar
Subject :IMO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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Suraj Ramanan Gopal from BVM Global, bangalore
Subject :IMO    Class : Class 5

Ans 1:

Time to Learn from Hirananandani Foundation School, Thane,Mumbai
Class : Class 5
The answer is b as when we add 12 and 8 it is 20. Then, we multiply 12 by 8 it becomes 96. So 96- 76 is 20. Then let's add 13 and 9=22. Then multiply 13 by 9 the answer is 117. Subtract 117 by 95 =22. Then add 7 and 6 it makes 13. Then multiply 7 by 6 the answer is 42. Then 42 - 13 is 29. So the answer is 29.

Ans 2:

Aryan Yadav from National Public School Sarjapur Road, Karnataka Bangalore
Class : Class 6
Dude Itcant be more than one answer

Ans 3:

Aditya Sai Kedarisetty from Sri Kumarans childrens Academy DKS, Bangalore
Class : Class 6

Ans 4:

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Class : Class 4
The answer is b as when we add 12 and 8 it is 20. Then, we multiply 12 by 8 it becomes 96. So 96- 76 is 20. Then let's add 13 and 9=22. Then multiply 13 by 9 the answer is 117. Subtract 117 by 95 =22. Then add 7 and 6 it makes 13. Then multiply 7 by 6 the answer is 42. Then 42 - 13 is 29. So the answer is 29.

Ans 5:

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Class : Class 4
Let’s name the three set of numbers as Set P, Q and R. Now, first observe the numbers in Set P. If we multiply the top two numbers and then subtract the sum of them, we get the bottom number. (12 x 8) - (12 8) = 96 – 20 = 76. 76 is the bottom number. Let’s see if numbers in Set Q will also follow the same rule. (13 x 9) – (13 9) = 117 – 22 = 95. 95 is the bottom number. So, the rule is correct. That means the numbers in Set R will also follow the same rule. (7 x 6) – (7 6) = 42 – 13 = 29. 29 is the missing bottom number. Hence, the right answer is Option B.

Ans 6:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9

Ans 7:

Vihaan Tyagi from Vikas the concept, Hyderabad
Class : Class 9
A and C are also correct

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rbaiswar25@gmail.com from Somerville International School, Noida
Subject :IMO    Class : Class 2

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