Anna used
19 of the rope to tie some presents. She threw away
67 of the remaining rope. As a result, she had 136 cm of the rope left. How much rope did Anna have at first? Give your answer in cm.
Fraction of the rope left after tying some presents
= 1 -
19=
89 Fraction of the remaining rope left after throwing away
= 1 -
67=
17
Fraction of the total rope left
=
89 ×
17=
863
Length of the rope at first = 63 u
Length of the rope left = 8 u
8 u = 136
1 u = 136 ÷ 8 = 17
Length of the rope at first
= 63 u
= 63 x 17
= 1071 cm
Answer(s): 1071 cm