Mathematics
A cube of 11 cm edge is immersed completely in a rectangular vessel containing water. If the dimensions of the base of the vessel are 15 cm × 12 cm, find the rise in the water level in centimeters correct to 2 decimal places, assuming that no water over flows.
Mensuration
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Answer
Let rise in height of water be h cm.
The volume of water rising will be equal to volume of cube.
∴ 15 × 12 × h = 11 × 11 × 11
180h = 1331
h = = 7.39 cm.
Hence, the rise in the water level is 7.39 cm.
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