Hilda used
110 of the ribbon to tie some presents. She threw away
47 of the remaining ribbon. As a result, she had 297 cm of the ribbon left. How much ribbon did Hilda have at first? Give your answer in cm.
Fraction of the ribbon left after tying some presents
= 1 -
110=
910 Fraction of the remaining ribbon left after throwing away
= 1 -
47=
37
Fraction of the total ribbon left
=
910 ×
37=
2770
Length of the ribbon at first = 70 u
Length of the ribbon left = 27 u
27 u = 297
1 u = 297 ÷ 27 = 11
Length of the ribbon at first
= 70 u
= 70 x 11
= 770 cm
Answer(s): 770 cm