Question
PSLE
Daniel has a thread which is 84 cm long. He cuts it into three pieces. The first piece is (5k - 4) cm, the second one is k cm and the third one is 2k cm.  Find the value of k. Give your answer in cm.
2 m

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PSLE
Daniel has a thread which is 84 cm long. He cuts it into three pieces. The first piece is (5k - 4) cm, the second one is k cm and the third one is 2k cm.  Find the value of k. Give your answer in cm.