A shock wave is advancing in the shape of a frustrum of a right circular cone. The upper radius, x of the frustrum is increasing at the rate of 2m per sec, the lower radius, y is increasing at the rate of 3m per sec, and the height, z is increasing at the rate of 1.5m per sec. Using the chain rule find the rate of increase of the volume, V of the frustrum at the moment when x = 10m, y = 16m and z = 8m.