ibrahim has a bag containing five red balls,six yellow balls and four white balls , the ball is pick at random from the bag.find the probability that:

(a))red or white ball ?
(b) yellow or red ball ?
(c) not red

a) how many red or white balls are there ?

b) how many yellow or reds are there ?

c) how many non-reds are there ?

How many balls are there in the bag in total?

Well ??