Question
PSLE
Andy has a thread which is 9 cm long. He cuts it into three pieces. The first piece is (3f - 5) cm, the second one is f cm and the third one is 3f cm.  Find the value of f. Give your answer in cm.
2 m

Click button first when a symbol is required. X

PSLE
Andy has a thread which is 9 cm long. He cuts it into three pieces. The first piece is (3f - 5) cm, the second one is f cm and the third one is 3f cm.  Find the value of f. Give your answer in cm.