Winnie used
35 of the rope to tie some presents. She threw away
310 of the remaining rope. As a result, she had 133 cm of the rope left. How much rope did Winnie have at first? Give your answer in cm.
Fraction of the rope left after tying some presents
= 1 -
35=
25 Fraction of the remaining rope left after throwing away
= 1 -
310=
710
Fraction of the total rope left
=
25 ×
710=
725
Length of the rope at first = 25 u
Length of the rope left = 7 u
7 u = 133
1 u = 133 ÷ 7 = 19
Length of the rope at first
= 25 u
= 25 x 19
= 475 cm
Answer(s): 475 cm