Question

what is the answer of this question please answer this

Answer 1

total balls=3+4+5=12

1)P1=3/12=1/4

2)P2=(12-5)/12=7/12

Answer 2

Total no of balls=12  P(of getting a white ball)=3/12=1/4  P(of not getting a black ball)=3+4/12=7/12