Question
PSLE
Riordan has a rope which is 180 cm long. He cuts it into three pieces. The first piece is (5z - 10) cm, the second one is z cm and the third one is 4z cm.  Find the value of z. Give your answer in cm.
2 m

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PSLE
Riordan has a rope which is 180 cm long. He cuts it into three pieces. The first piece is (5z - 10) cm, the second one is z cm and the third one is 4z cm.  Find the value of z. Give your answer in cm.