Monday 30 March 2015

Find the blank cell??

Find the blank cell??






Solution: 8

Explanation:
x1 ==>   1 x 1 =1    ==>  1   x 1 = 1   
x2 ==>   4 x 2 =8    ==>  8   x 2 = 16 
x3 ==>   9 x 3 =27  ==>  27 x 3 = 81

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