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Dhairya Godbole from KLE Eng Medium School, SOLAPUR
Subject :IMO    Class : Class 6

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Ashwin Shridhar from Vidyashilp Academy, Bangalore
Subject :IMO    Class : Class 8

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Harshvardhan Lugade from Podar International School, Pune
Subject :IMO    Class : Class 6

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Advik singla from Pkr Jain vatika sr sec school, Ambala city
Subject :IMO    Class : Class 3

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Ketaki Subhash Ghatol from CSA Satara, Satara
Subject :IMO    Class : Class 8

In the given question, two rows of numbers are given. Resultant number in each row is to be worked out separately based on the following rules and the question below the rows of numbers is to be answered. The operations of numbers progress from left to right.
Rules:
1. If an even number is followed by a prime number, they are to be multiplied.
2. If an even number is followed by a composite odd number, odd number is to be subtracted from the even number.
3. If an odd number is followed by a prime number, the first number is to be divided by the second number.
4. If an odd number is followed by an even number which is a perfect square, they are to be added.
5. If an odd number is followed by composite odd number, they are to be added.
23 15 9 64
x 31 15 3
If x is the resultant of the first row, then what is the resultant of the second row?

A54
B18
C21
D72


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Diya from delhi public school dlf phase-2, GURUGRAM
Subject :IMO    Class : Class 6

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Kunal Kankani from Bharti Public School, Delhi
Subject :IMO    Class : Class 3

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Aayush Tripathy from SAI International School, Bhubaneswar
Subject :IMO    Class : Class 6

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Sanay Pathak from Hooghly, Hooghly
Class : Class 5

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Kunal Kankani from Bharti Public School, Delhi
Subject :IMO    Class : Class 3

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soumik mitra from vwms, mankundu
Class : Class 3
7

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Megh Dutt from BHAVAN'S RAJAJI VIDYASHARAM, CHENNAI
Subject :IMO    Class : Class 6

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Megh Dutt from BHAVAN'S RAJAJI VIDYASHARAM, CHENNAI
Class : Class 6

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