Question
PSLE
Carl has a thread which is 34 cm long. He cuts it into three pieces. The first piece is (2r - 1) cm, the second one is r cm and the third one is 2r cm.  Find the value of r. Give your answer in cm.
2 m

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PSLE
Carl has a thread which is 34 cm long. He cuts it into three pieces. The first piece is (2r - 1) cm, the second one is r cm and the third one is 2r cm.  Find the value of r. Give your answer in cm.