Question
PSLE
David has a wire which is 16 cm long. He cuts it into three pieces. The first piece is (3n - 5) cm, the second one is n cm and the third one is 3n cm.  Find the value of n. Give your answer in cm.
2 m

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PSLE
David has a wire which is 16 cm long. He cuts it into three pieces. The first piece is (3n - 5) cm, the second one is n cm and the third one is 3n cm.  Find the value of n. Give your answer in cm.