In a play zone, Astha, is playing crane game. It has 12 blue balls, 8 red balls, 10 yellow balls and 5 green balls. If Astha draws two balls one after the other without replacement, then answer the following questions.

What is the probability that the first is blue and the second ball green ?

Options

A. `(5)/(119)`
B. `(12)/(119)`
C. `(6)/(119)`
D. `(15)/(119)`

Answer

C

Explanation

(c) Since, two balls are selected one after the other without replacement.
first is blue and the second ball green
P(first ball drawn is blue)`=P(B) =12/35`
P(second ball drawn is green)`=P(G/B)=5/34`
`P(AnnB)=P(B).P(G/B)`
=`12/35xx5/34`
`=(6)/(119)`