A wide pipe divides into three narrower pipes. The wide pipe has a radius of 17.5$17\mathrm{.}5$ cm and transports water with an average velocity of 60.0$60\mathrm{.}0$ cm/$/$s.$.$ Each of the narrow pipes has a radius of 2.50$2\mathrm{.}50$ cm.$.$ Calculate:

a. the volume rate of flow in each of the narrow pipes.

b. the average speed in each of the narrow pipes.