Answer
(a) $34.733$
(b) $34.733$
Work Step by Step
RECALL:
(1) To round-off a number, check the digit immediately to the right of the round-off place. If the digit is 5 or higher, round up the value, otherwise, retain the value.
Examples:
Round-off to two decimal places:
$23.546 \longrightarrow 23.55
\\23.544 \longrightarrow 23.54$
(2) To truncate a number, drop all digits to the right of the specific truncation place.
Examples:
Truncate to two decimal places:
$23.546 \longrightarrow 23.54
\\23.544 \longrightarrow 23.54$
Thus, for the given number:
First, convert the fraction to a decimal using a calculator to obtain:
$\dfrac{521}{15} = 34.7333....$
(a) Rounded-off to three decimal places:
$34.73\underline{3}\color{red}{3}333333 \longrightarrow 34.733$
(b) Truncated to three decimal places:
$34.73\underline{3}\color{red}{333333} \longrightarrow 34.733$
