Raeann used
19 of the string to tie some presents. She threw away
411 of the remaining string. As a result, she had 168 cm of the string left. How much string did Raeann have at first? Give your answer in cm.
Fraction of the string left after tying some presents
= 1 -
19=
89 Fraction of the remaining string left after throwing away
= 1 -
411=
711
Fraction of the total string left
=
89 ×
711=
5699
Length of the string at first = 99 u
Length of the string left = 56 u
56 u = 168
1 u = 168 ÷ 56 = 3
Length of the string at first
= 99 u
= 99 x 3
= 297 cm
Answer(s): 297 cm