Irene used
38 of the streamer to tie some presents. She threw away
611 of the remaining streamer. As a result, she had 225 cm of the streamer left. How much streamer did Irene have at first? Give your answer in cm.
Fraction of the streamer left after tying some presents
= 1 -
38=
58 Fraction of the remaining streamer left after throwing away
= 1 -
611=
511
Fraction of the total streamer left
=
58 ×
511=
2588
Length of the streamer at first = 88 u
Length of the streamer left = 25 u
25 u = 225
1 u = 225 ÷ 25 = 9
Length of the streamer at first
= 88 u
= 88 x 9
= 792 cm
Answer(s): 792 cm