Gem used
19 of the streamer to tie some presents. She threw away
310 of the remaining streamer. As a result, she had 532 cm of the streamer left. How much streamer did Gem have at first? Give your answer in cm.
Fraction of the streamer left after tying some presents
= 1 -
19=
89 Fraction of the remaining streamer left after throwing away
= 1 -
310=
710
Fraction of the total streamer left
=
89 ×
710=
2845
Length of the streamer at first = 45 u
Length of the streamer left = 28 u
28 u = 532
1 u = 532 ÷ 28 = 19
Length of the streamer at first
= 45 u
= 45 x 19
= 855 cm
Answer(s): 855 cm