Dana used
27 of the wire to tie some presents. She threw away
67 of the remaining wire. As a result, she had 35 cm of the wire left. How much wire did Dana have at first? Give your answer in cm.
Fraction of the wire left after tying some presents
= 1 -
27=
57 Fraction of the remaining wire left after throwing away
= 1 -
67=
17
Fraction of the total wire left
=
57 ×
17=
549
Length of the wire at first = 49 u
Length of the wire left = 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Length of the wire at first
= 49 u
= 49 x 7
= 343 cm
Answer(s): 343 cm