The surface are of a balloon being inflated changes at a constant rate. If initially, its radius is3 units sand after 2 seconds, it s 5 units, find the radius after t seconds.

The surface area of a balloon being inflated changes at a constant rate. If initially, its radius is 3 units and after 2 seconds, it is 5 units, find the radius after t seconds.

The volume of spherical balloon being inflated changes at a constant rate. If initially its radius is 3 units and after 3 seconds it is 6 units. Find the radius of balloon after t seconds.

The volume of spherical balloon being inflated changes at a constant rate. If initially its radius is 3 units and after 3 seconds it is 6 units. Find the radius of balloon after t seconds.

The surface area of a spherical balloon being inflated, changes at a rate proportional to time t . If initially its radius is 1 unit and after 3 secons it is 2 units, find the radius after t seconds.

Find the surface area of a sphere when its volume is changing at the same rate as its radius.

The surface area of spherical balloon is increasing at the rate of 2cm^(2) /sec. Find the rate of change of its volume when its radius is 5cm

The surface of a spharical balloon is increasing at a rate of 2cm^2/sec. Find the rate of increase of its volume when its radius is 6 cm.

If the rate of change of area of a circle is equal to the rate of change of its diameter, then its radius is equal to (a) unit (b) unit (c) units (d) units

A spherical balloon is being inflated so that its volume increase uniformaly at the rate of 40 cm^(3)//"minute" . The rate of increase in its surface area when the radius is 8 cm, is

Find the rate of change of radius of a sphere when its radius is 4 cm and when its volume is changing at the rate of (4pi)/(625)m^(3)//sec