Two water taps together can fill a tank 3 1/3 hours. The tap of larger diameter takes 5 hour less the smaller one to fill the tank separately. Find the time in which each tap can fill the tank separately.
ABCD is a parallelogram in which is the midpoint of DC and q is a point on AC such that cq is equal to 1/4 of AC if PQ produced meets BC at R prove that R is the mid point of BC