Given the probability that A can solve a problem is 2/3 and the probability that B can solve the same problem is 3/5. /find the probability that none of the two will be able to solve the problem.

If A and B are two independent events such that P (A ∪ B) = 0.60 and P(A)= 0.2, find P(B).

A die Is tossed twice. Find the probability of getting a number greater than 3 on each toss.

An unbiased die is tossed twice. Find the probability of getting 4,5, or 6 on the first toss and 1,2,3 or 4 on the second toss.

A bag contains 3 red and 2 black balls. One ball Is drawn from it at random. Its colour is noted and then it is put back in the bag. A second draw is made and the same procedure is repeated. Find the probability of drawing (i) tow red balls, (ii) two black balls, (iii) first red and second black ball.