Question

Evaluate $\frac{25.2\times 1374}{33.3}$. All the digits in this expression are significant.

• A. 1039
• B. 1039.784
• C. 1040
• D. 104

Answer 1

The correct option is C

1040

We have $\frac{25.2\times 1374}{33.3}$= 1039.7838....

Out of the three numbers given in the expression 25.2 and 33.3 have 3 significant digits and 1374 has four. The answer should have three significant digits. Rounding 1039.7838... to three significant digits, It becomes 1040. Thus, we write

$\frac{25.2\times 1374}{33.3}$ = 1040.