Gwen used
29 of the wire to tie some presents. She threw away
49 of the remaining wire. As a result, she had 245 cm of the wire left. How much wire did Gwen have at first? Give your answer in cm.
Fraction of the wire left after tying some presents
= 1 -
29=
79 Fraction of the remaining wire left after throwing away
= 1 -
49=
59
Fraction of the total wire left
=
79 ×
59=
3581
Length of the wire at first = 81 u
Length of the wire left = 35 u
35 u = 245
1 u = 245 ÷ 35 = 7
Length of the wire at first
= 81 u
= 81 x 7
= 567 cm
Answer(s): 567 cm