Question
Mary cuts a piece of ribbon into three pieces. The first piece is 156 cm shorter than the second piece. The second piece is 7 m 78 cm longer than the third piece. If the first piece is 7 m 74 cm long, find the length of the third piece in m and cm.
4 m

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Mary cuts a piece of ribbon into three pieces. The first piece is 156 cm shorter than the second piece. The second piece is 7 m 78 cm longer than the third piece. If the first piece is 7 m 74 cm long, find the length of the third piece in m and cm.