A lake contains two kinds of trout rainbow and brown It is

. A lake contains two kinds of trout, rainbow and brown. It is estimated that 40% of the trout are rainbow. Of the rainbow trout, 60% are mature, and of the brown trout, 30% are mature. You have a trout on the line and see that it is a keeper. What is the probability that it is a rainbow?

the probability that it is a rainbow is : 0.15