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Q.

Find the square of 83.

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a

6899

b

6809

c

6889

d

6409

answer is B.

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Detailed Solution

832 = (80+3)2 = 80(80+3) + 3(80+3)

= 802+ 80 x 3 + 3 x 80 + 32

= 6400 + 240 + 240 + 9

= 6889

Therefore, the square of 83 is 6889. 

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Find the square of 83.