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Subject :IMO    Class : Class 6

The number 144 can be represented by 12 × 12 square grid. Which of the following can also be represented on a square grid?

A 39
B 50
C 70
D 81


81 is the ans as 9 into 9 is=81

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5

Ans 3:

Class : Class 9
THE ANSWER SHOULD BE 81 BECAUSE,SQUARE OF 9=9*9[NINE MULTIPLY BY NINE] HENCE THE ANSWER IS EIGHTY ONE.

Ans 4:

Class : Class 5

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