Question
How many identical spherical
marbles having a diameter of 4 cm can be made by melting a hemisphere of radius 28 cm? (Use π = 22/7)Solution
ATQ,
Volume of hemisphere = (2/3) × π × radius³ Volume of sphere = (4/3) × π × radius³ Let the required number of spheres be 'N'. So, N × (4/3) × (22/7) × (4/2)³ = (2/3) × (22/7) × 28³ Or, 'N' = 1372
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