a vessel is in the form of an inverted cone. its height is 8 cm and the radius of its top, which is open, is 5 cm. it is filled with water up to the brim . when lead shots, each of which is a sphere of radius 0.5 cm are dropped into the vessel, one-fourth of the water flows out. find the number of lead shots dropped in the vessel.
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Answer:
100 lead shots
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no.of drop × Volume of drop = 1/4×volume of vessel
x×4/3×22/7×0.5×0.5×0.5 = 1/4×1/3×22/7×5×5×8
x=1/4×1/3×22/7×5×5×8×3/4×7/22×10/5×10/5×10/5
x=100
no.of drop =100
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