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Primary 5 Problem Sums/Word Problems - Try FREE

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A rectangular fish tank is filled with water to a height of 8 cm.

Its rectangular base measures 25 cm by 20 cm.

When an additional 8.5 litres of water are poured into the tank, the water level rises to `5/6` of the height of the tank.

What is the height of the tank?

The correct answer is : 30