Question

A bag contains m white balls, 21 red balls and n blue
balls. A ball is drawn at random from the bag. If the
probability that the drawn ball is blue, is 1/4 and the

probability that the drawn ball is red, is7/20
then

the value of m and n are​

Answer 1

Answer:

m is 24 and n is 15

n/21+n+m =1/4

21/21+n+m = 7 /21