Question

a bag contains 10 green balls and some red balls, if the probability of drawing a red ball is three times that of a green ball, determine the number of red balls in the bag

Answer 1

If green ball= 10

then, the probability of red ball= 3× green ball

= 3× 10 = 30

Answer 2

Answer:

Total no.of green balls =10

P(E)=3x10

=30