Question
PSLE
Warren has a rope which is 77 cm long. He cuts it into three pieces. The first piece is (3s - 7) cm, the second one is s cm and the third one is 2s cm.  Find the value of s. Give your answer in cm.
2 m

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PSLE
Warren has a rope which is 77 cm long. He cuts it into three pieces. The first piece is (3s - 7) cm, the second one is s cm and the third one is 2s cm.  Find the value of s. Give your answer in cm.