List of top Mathematics Questions on Rate of Change of Quantities asked in VITEEE

A football is inflated by pumping air in it. When it acquires spherical shape its radius increases at the rate of 0.02 cm/s. The rate of increase of its volume when the radius is 10 cm is ___________$\pi$ cm/s

The interval in which the function $f\left(x\right) = \frac{4x^{2}+1}{x}$ is decreasing is :