Question

How many times should a 15-meter scale be used to measure a rope 6.75 hectometers long?

• A. 25 times
• B. 35 times
• C. 45 times
• D. 55 times

Answer 1

The correct option is C 45 times

First, let's convert hectometer into meter.
We know,
1 hectometer = 100 m



$\therefore 6.75\text{hm}=6.75\times 100=675\text{m}$

Now, to calculate the number of times a 15 m scale is used to measure 675 m of rope, we will divide the length of the rope by the length of the scale.

Number of times the scale is used $=\frac{\text{Length of rope}}{\text{Length of scale}}$

$=\frac{675m}{15m}=45$

Hence, the scale is used 45 times to measure 6.75 hectometer.