The volume of a sphere is …
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Naveen Sharma 8 years, 9 months ago
Ans. Let Initial Radius of Sphere is R and FInal Radius of Sphere is r.
Initial Volume of the sphere = 4851 cm3
=> \({4 \over 3} \times {22 \over 7} \times R^3 = 4851\)
=> \(R^3 = {{4851 \times 21 } \over 88}\)
=> \(R^3 = 1157.625 \)
=> R = 10.5 (1)
Final Volume of Sphere = \({4312 \over 3} cm^3\)
=> \({4 \over 3} \times {22 \over 7} \times r^3 = {4312\over3}\)
=> \(r^3 = {{4312 \times 7 } \over 88}\)
=> \(r^3 = 343\)
=> r = 7
Radius to be Reduced by = 10.5 - 7 = 3.5 cm
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