2019-II-06

Ans: D
A is not true.

$\begin{array}{rcl}
0.06557 & = & 0.07 \ \text{(corr. to $2$ decimal places)} \\
0.06564 & = & 0.07 \ \text{(corr. to $2$ decimal places)}
\end{array}$

B is not true.

$\begin{array}{rcl}
0.06557 & = & 0.066 \ \text{(corr. to $2$ significant figures)} \\
0.06564 & = & 0.066 \ \text{(corr. to $2$ significant figures)}
\end{array}$

C is not true.

$\begin{array}{rcl}
0.06557 & = & 0.066 \ \text{(corr. to $3$ decimal places)} \\
0.06564 & = & 0.066 \ \text{(corr. to $3$ decimal places)}
\end{array}$

D is true.

$\begin{array}{rcl}
0.06557 & = & 0.0656 \ \text{(corr. to $3$ significant figures)} \\
0.06564 & = & 0.0656 \ \text{(corr. to $3$ significant figures)}
\end{array}$