A 45 foot piece of rope is cut in 2 pieces, one being twice the length of the other one.

Question

what is the length of the short piece

Answer 1

x = length of short piece

2x = length of long piece

45 = total length

 

45 = x + 2x = 3x

 

3x = 45

 

x = 45/3 = 15 feet