A cylindrical closed tank contains 36 pi cubic metres of water and is filled to half of i...........

Quantitative Aptitude Mensuration 3D

A cylindrical closed tank contains 36π cubic metres of water, and is filled to half of its capacity. When the cylindrical tank is placed upright on its circular base on level ground, the height of the water in the tank is 4 metres But when this tank is placed on its side on level ground, what will be the height of the surface of the water above the ground?

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EPFO APFC (2015)

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9 metres

6 metres

3 metres

1 metre

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Explanation:

Since the tank is half full when placed upright then naturally it'll also be half full when placed on its side, so the level of the water (when placed that way) will be half of the diameter, so, r.