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Tuesday, March 17, 2009

Tao Nan School P5 SA2 2006 Math Q43

A container measuring 17cm by 8cm by 10cm was half filled with water. When 8 cubes were put in, the water level became 8cm. Find the volume of each cube.

Solution


Height increase -----
8 cm (new height) – 5 cm (half tank) = 3 cm

Volume of 8 cubes -----
17cm x 8cm x 3cm
= 408 cubic cm

1 cube ----- 408 cubic cm divided by 8
= 51 cubic cm

Answer: 51 cubic cm

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