Let A = {1, 2, 3, 4, 5, 6}. Two numbers are drawn with replacement from the set A. What is theprobability that one of them is odd and other is even.

Two balls are drawn with replacement from a box containing 10 black and 8 red balls. Find the probability that one of them is black and the other is red.

A bag contains 3 white, 4 red and 5 black balls. Two balls are drawn one after the other, without replacement. What is the probability that one is white and the other is black?

A bag contains 3 white, 4 red and 5 black balls. Two balls are drawn one after the other, without replacement. What is the probability that one is white and the other is black?

From the set of numbers {1,2,3,4,5,6,7,8} two numbers are selected at random without replacement.The probability that their sum is more than 13 is

A bag contains 20 tickets, numbered from 1 to 20. Two tickets are drawn without replacement. What is the probability that the first ticket has an even number and the second an odd number.

A bag contains 20 tickets, numbered from 1 to 20. Two tickets are drawn without replacement. What is the probability that the first ticket has an even number and the second an odd number.

Two numbers are chosen from {1, 2, 3, 4, 5, 6, 7, 8} one after another without replacement. Then the probability that

Two numbers are chosen from {1, 2, 3, 4, 5, 6, 7, 8} one after another without replacement. Then the probability that