2019 3marks Maris Stella P6 Paper2 SA2

P6 / Maris Stella / 2019 / SA2 / Paper 2 – Q11 [3 marks]

Question:

A tank measuring 45 cm by 20 cm by 60 cm is 1/4 filled with water. Water is flowing from Tap A into the tank at 9L/min. Water is draining from Tap B at 6L/min. Both taps were turned on at the same time. How long will it take to fill the tank completely with water? Leave your answer in minutes.

Solution:

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