Question

13. The length of a rope is decreased by 12.1%. What is the new length if it was 150 metres?​

Answer 1

Answer:

131.85 m

Step-by-step explanation:

Initial length of rope was 150 meters, if length is decreased by 12.1% then the new length will be (100 - 12.1) % of the original, which is 87.9%. So, you have to find 87.9% of a number 150.

= 150 * 87.9 / 100

=  131.85 m

Answer 2

Answer:

The length of the rope is 150 m

Decrease in length (%)=12.5%

Therefore the new length is

=150×12.5/100

=150×125/1000

=15×5/4

=75/4

=18.75

Therefore new length is

150-18.75

131.25

Step-by-step explanation:

I hope it will help you