International Maths Olympiad Forum By SOF Olympiad Trainer - Page 318
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Gauransh Gupta from Manavsthali School R-block, NEW DELHI
Subject :IMO    Class : Class 9

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

(D): 


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

Ans 1:

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.

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

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

Admin from revisewise, Noida
Class : Class 1

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


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Yadnya Thakare from Ryan International, Pune
Subject :IMO    Class : Class 4

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Shreyas V Poojary from Sri Sri Ravishankar Vidya Mandir , Bangalore
Subject :IMO    Class : Class 6

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Pratham Dave from GNS, Bangalore
Subject :IMO    Class : Class 5

Ans 1:

Aarush Abhilash from Amansetu My school, Pune
Class : Class 5

Ans 2:

Navya from Gyanshree, Noida
Class : Class 6
A

Ans 3:

Siddharth Menon from Christ Nagar Higher Secondary School, Kowdiar, Trivandrum
Class : Class 2
A

Ans 4:

krishneil from Elpro international school, Pune
Class : Class 6
A. I used trick because any number x10 will end with 0

Ans 5:

DHAIRYA PRASAD from DAV, Asansol
Class : Class 5
A

Ans 6:

Aarush Abhilash from Amansetu My school, Pune
Class : Class 5
A

Ans 7:

Harshil Jain from DPS, Bangalore
Class : Class 3
LOL

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Rick Banerjee from Calcutta Boys School, Kolkata
Subject :IMO    Class : Class 7

Ans 1:

jiya jain from mindful gurukul, Mumbai
Class : Class 7
D) IS THE ANSWER as answer should be 5x^2 + 23xy-2y^2+1

Ans 2:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
THE CORRECT ANSWER IS D NONE OF THESE. AS CORRECT ANSWER IS 5x^2 + 23xy-2y^2+1. TELL IF YOU WANT SOLUTION.

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Gunnit Kant from DPS, Nerul, Navi Mumbai
Subject :IMO    Class : Class 4

Ans 1:

Gunnit Kant from DPS, Nerul, Navi Mumbai
Class : Class 8
c

Ans 2:

Gunnit Kant from DPS, Nerul, Navi Mumbai
Class : Class 8
c

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