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Total number ...

Question

Total number of squares in chess board is

A

204

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B

1244

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C

64

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D

128

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Solution

The correct option is A $204$
Total number of squares of size $8 \times 8 = 64$ , size $7 \times 7 = 49$ ....so on till $1 \times 1 = 1$
Total $= 64 + 49 + 36....... + 1 = 204$

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