Question
Barbara was given a piece of ribbon of length 7 m 70 cm. She used a part of it to tie 5 curtains and 4 m 30 cm of the remaining length to decorate her room. Given that each curtain needed 30 cm, what was the length of the ribbon that was left behind by Barbara? (Leave the answer in metres and centimetres.)
4 m

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Barbara was given a piece of ribbon of length 7 m 70 cm. She used a part of it to tie 5 curtains and 4 m 30 cm of the remaining length to decorate her room. Given that each curtain needed 30 cm, what was the length of the ribbon that was left behind by Barbara? (Leave the answer in metres and centimetres.)