Abi used
311 of the rope to tie some presents. She threw away
35 of the remaining rope. As a result, she had 160 cm of the rope left. How much rope did Abi have at first? Give your answer in cm.
Fraction of the rope left after tying some presents
= 1 -
311=
811 Fraction of the remaining rope left after throwing away
= 1 -
35=
25
Fraction of the total rope left
=
811 ×
25=
1655
Length of the rope at first = 55 u
Length of the rope left = 16 u
16 u = 160
1 u = 160 ÷ 16 = 10
Length of the rope at first
= 55 u
= 55 x 10
= 550 cm
Answer(s): 550 cm