Question

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

• A. 3.125
• B. 3.13
• C. 3.1
• D. 31.25

Answer 1

Answer: (C)

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