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Devanshi Mahajan from Mt Saint Mary, Delhi
Subject :IMO    Class : Class 7

The average of 5 numbers is 6x. If four of them are x, 7, 6, 4, then find the fifth number. Give your answer in terms of x.

A
B29x - 17
C6x - 17
D5x - 17


Ans 1:

Shaurya Achar from Greenwood High Bannergattha Road Bangalore Karnataka, Bangalore
Class : Class 7

Ans 2:

Devanshi Mahajan from Mt Saint Mary, Delhi
Class : Class 3

Ans 3:

Darsh Jain from The Vedansh International School, Indore
Class : Class 7
the solution has an extra 1 in the last 3rd line

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