Application of DerivativeMedium
Question
The volume of metal in a hollow sphere is constant. If the inner radius is increasing at the rate of 1 cm/sec, then the rate of increase of the outer radius when the radii are 4 cm and 8 cm respectively is-
Options
A.0. 75 cm/sec
B.0.25 cm/sec
C.1 cm/sec
D.0.50 cm/sec
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