15. A uniform beam AB of length 100m and weight 20N rests on a supports P and Q placed 20m

15. A uniform beam AB of length 100m and weight 20N rests on a supports P and Q placed 20m from each end of the beam. Weights of 50N and 5N are placed at A and B respectively. Calculate the reaction at P and Q.
I BEG SHARP RESPONSE​