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Question

A rectangular container has base of length 12 cm and width 9 cm. A cube of edge 6 cm is placed in the container and then sufficient water is filled into it so that the cube is just submerged. Find the fall in level of the water, in the container, when the cube is removed.

A
2 cm
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B
1 cm
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C
4 cm
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D
3 cm
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Solution

The correct option is A 2 cm
Volume of cube of edge 6 cm=63=126
Given, length =12, width =9
Volume of rectangle =12×9×h
volume of cube emerged,so equal to volume of rectangle
216=108h
h=2cm

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