Yoko used
45 of the ribbon to tie some presents. She threw away
511 of the remaining ribbon. As a result, she had 114 cm of the ribbon left. How much ribbon did Yoko have at first? Give your answer in cm.
Fraction of the ribbon left after tying some presents
= 1 -
45=
15 Fraction of the remaining ribbon left after throwing away
= 1 -
511=
611
Fraction of the total ribbon left
=
15 ×
611=
655
Length of the ribbon at first = 55 u
Length of the ribbon left = 6 u
6 u = 114
1 u = 114 ÷ 6 = 19
Length of the ribbon at first
= 55 u
= 55 x 19
= 1045 cm
Answer(s): 1045 cm