Fiona used
25 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 -
25=
35 Fraction of the remaining wire left after throwing away
= 1 -
34=
14
Fraction of the total wire left
=
35 ×
14=
320
Length of the wire at first = 20 u
Length of the wire left = 3 u
3 u = 36
1 u = 36 ÷ 3 = 12
Length of the wire at first
= 20 u
= 20 x 12
= 240 cm
Answer(s): 240 cm