Question

255 cm length is cut out from a pole of length 5 m. What is the length of the remaining pole in metres?

• A. 2. 5 m
• B. 2.54 m
• C. 2.45 m
• D. 3 m

Answer 1

The correct option is C 2.45 m

$1\text{m}=100\text{cm}$
$\Rightarrow 1\text{cm}=\frac{1}{100}\text{m}$
$\Rightarrow 255\text{cm}=255\times \frac{1}{100}\text{m}=2.55\text{m}$

Since 255 cm length is cut out from the pole of length 5 m, the length of the remaining pole is given by
5 m - 255 cm = 5 m - 2.55 m = 2.45 m.