Gem used
16 of the string to tie some presents. She threw away
411 of the remaining string. As a result, she had 385 cm of the string left. How much string did Gem have at first? Give your answer in cm.
Fraction of the string left after tying some presents
= 1 -
16=
56 Fraction of the remaining string left after throwing away
= 1 -
411=
711
Fraction of the total string left
=
56 ×
711=
3566
Length of the string at first = 66 u
Length of the string left = 35 u
35 u = 385
1 u = 385 ÷ 35 = 11
Length of the string at first
= 66 u
= 66 x 11
= 726 cm
Answer(s): 726 cm