Lynn used
19 of the string to tie some presents. She threw away
57 of the remaining string. As a result, she had 176 cm of the string left. How much string did Lynn 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 -
57=
27
Fraction of the total string left
=
89 ×
27=
1663
Length of the string at first = 63 u
Length of the string left = 16 u
16 u = 176
1 u = 176 ÷ 16 = 11
Length of the string at first
= 63 u
= 63 x 11
= 693 cm
Answer(s): 693 cm