Question

A rope is 250 centimeters long. You need the rope to be 1 1/2 meters long. How many centimeters should you cut off?

Answer 1

you must convert CM to M
250cm x 100m = 2.5m 
ad then divide 1.5 by 2.5 
= cut off 0.6

Answer 2

You need to cut 100 cm of rope