Fiona used
47 of the wire to tie some presents. She threw away
34 of the remaining wire. As a result, she had 36 cm of the wire left. How much wire did Fiona have at first? Give your answer in cm.
Fraction of the wire left after tying some presents
= 1 -
47=
37 Fraction of the remaining wire left after throwing away
= 1 -
34=
14
Fraction of the total wire left
=
37 ×
14=
328
Length of the wire at first = 28 u
Length of the wire left = 3 u
3 u = 36
1 u = 36 ÷ 3 = 12
Length of the wire at first
= 28 u
= 28 x 12
= 336 cm
Answer(s): 336 cm