Question
A rod of length of 616 cm and 35cm radius is melted and
converted into a sphere of radius 21cm, find how many such proper spheres can be made?Solution
Volume of rod = πr²h
Volume of sphere = πr³
π × 35 × 35 × 616 = n × 4/3 × π × 21 × 21 × 21
n = 61.11
No. of spheres = 61
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