Usha used
310 of the ribbon to tie some presents. She threw away
411 of the remaining ribbon. As a result, she had 196 cm of the ribbon left. How much ribbon did Usha have at first? Give your answer in cm.
Fraction of the ribbon left after tying some presents
= 1 -
310=
710 Fraction of the remaining ribbon left after throwing away
= 1 -
411=
711
Fraction of the total ribbon left
=
710 ×
711=
49110
Length of the ribbon at first = 110 u
Length of the ribbon left = 49 u
49 u = 196
1 u = 196 ÷ 49 = 4
Length of the ribbon at first
= 110 u
= 110 x 4
= 440 cm
Answer(s): 440 cm