Question

Box 1 contains 3 white and 2 black balls. box 2 contains 1 white and 4 black balls. a ball is picked from one of the two boxes. it turns out to be black. find the probability that it was drawn from box 1.

Answer 1

i think it would be the answer

Answer 2

hi hope I could help u
b1 contains 3wh and 2 bl balls
b2 contains 1 wh and 4 bl balls

therefore, total outcome 3+2+1+4=10

now the ball that comes is black
also they have said b1
therefore,
no.of black ball in b1 is 2

therefore, probability= favorable outcome/ total outcome

2/10=
1/5
hope this helps u pls say if it helped u