International Maths Olympiad Forum By SOF Olympiad Trainer - Page 442
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ISHAAN SAHA from st xavier school, hazaribag
Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

from ,
Class :

(B): Total number of equal parts = 15
Number of unshaded parts = 9
Unshaded  fraction = 9/15
 


Ans 2:

Samriddhi Debnath from Garden High School, Kolkata
Class : Class 3
(B):Total number of equal parts =15 Number of unshaded parts =9 Unshaded fraction=9/15

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subhash chand from st mary' school, bijnor
Subject :IMO    Class : Class 9

Ans 1:

Krishna Atrey from DPS Kalali, Vadodara
Class : Class 9
solution please

Ans 2:

Mandavyapuram Jaswin Reddy from Narayana School, SRIKALAHASTI
Class : Class 10
The answer is 36,48,60.

Ans 3:

Mandavyapuram Jaswin Reddy from Narayana School, SRIKALAHASTI
Class : Class 10
The answer is 36,48,60.

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Aditri Dixit from TCIS, Bangalore
Subject :IMO    Class : Class 3

Ans 1:

Divit khandelwal from DPS bopal Ahmedabad , AHMEDABAD
Class : Class 3
ans d 9

Ans 2: (Master Answer)

from ,
Class :

(C): 


Possible ways are
ABCDEFGH, ABCDJKGH, ABCDGH, ACDEFGH, ACDJKGH, ACDGH, AICDEFGH, AICDJKGH, AICDGH.
Total number of ways = 9.


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Gauransh Gupta from Manavsthali School R-block, NEW DELHI
Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

from ,
Class :

(C):  Except in option (C), in all other options number of sides of inner figure is two less than the number of sides of outer figure.  


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Trilochan from Sairam Vidayalaya, Chennai
Subject :IMO    Class : Class 4

Ans 1:

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

Ans 2:

Shreeraj from ISWK, Muscat, Muscat
Class : Class 4
Option D 3:00 p.m.

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Gauransh Gupta from Manavsthali School R-block, NEW DELHI
Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

from ,
Class :

(D): 


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Gauransh Gupta from Manavsthali School R-block, NEW DELHI
Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

from ,
Class :

(C): M is the mother of R. R is the father of S. Hence, R is the son of M. 


Ans 2:

Shubhadeep Santra from St Pauls Sr Secondary School, Jodhpur
Class : Class 10
both c and d is correct. since in c option m is the mother of r .: r will be the son and since in option d m is the father of r then also r will be the son of m.

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VIBHU SHARMA from Mount St Mary, NEW DELHI
Subject :IMO    Class : Class 8

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Bhavyajyothy AjayaKumar from Sadbhavana World School, Kozhikode
Subject :IMO    Class : Class 2

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Jatin from Centre point school, Nagpur
Subject :IMO    Class : Class 3

Ans 1: (Master Answer)

from ,
Class :

(C): Number shown on abacus = 2436
New number formed = 2544
Required difference = 2544 - 2436 = 108
 


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