Question

A rod of a certain length is divided into 4 pieces of lengths 2.03 m, 6.89 m, 1.7 m and 3.83 m. If the total length is divided by the length of the smallest part what would be the result?

• A. 8.38 m
• B. 8.5 m
• C. 9.85 m
• D. 7.5 m

Answer 1

The correct option is B

8.5 m

First, convert all numbers to like decimals. Therefore the decimal numbers are 2.03, 6.89, 1.70 and 3.76

$2.03$
$+6.89$
$+1.70$
$+3.83$
$\overline{}$
$14.45$
$\overline{}$

As per problem, we need to the result divided by the smallest part. This gives,
$\frac{14.45}{1.7}=\frac{1445}{1.7\times 100}=\frac{1445\times 10}{17\times 100}=\frac{1445}{17}\times \frac{1}{10}=\frac{85}{10}=8.5m$