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Q.

The result of the operation 2.5 x 1.25 should be which of the following on the basis of significant figures?

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a

3.125

b

3.13

c

3.1

d

31.25

answer is C.

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Detailed Solution

2.5 x 1.25 = 3.125
Since 2.5 has two significant figures, the result should not have more than two significant figures. Hence, the answer will be 3.1

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