Question

5 red balls 3 green balls 2 yellow balls in a bag 2 balls are drawn at random what is the probability that none is green ball

Answer 1

P (R)=5

P (G)=3

P (Y)=2

total number of balls =P (R)+P (G)+P (Y)

=5+3+2

=10

Probability of green ball= number

of green balls

-----------------------------------

total number of

balls

= 3/10

probability of none green ball=1--3/10

=7/10