Question

The answer of the calculation $\frac{2.568\times 5.8}{4.168}$ in significant figures will be:

• A. 3.579
• B. 3.57
• C. 3.57
• D. 3.6

Answer 1

The correct option is D 3.6

In these operations where multiplication and division are involved, the result must be reported with no more significant figures as are there in the measurement with the least significant figures.

$\frac{2.568\times 5.8}{4.168}$ = 3.573

Since 5.8 has the least that is only two significant figures, the result should not have more than two significant figures. Thus, it is $3.6$ after rounding off.