Three squares of chess board are chosen at random, then the probability that two are of one color and one of another is
A box contains 4 white pens and 2 black pens. Another box contains 3 white pens and 5 black pens. If one pen is selected from each box, then the probability that both the pens are white, is
A bag contains 5 brown and 4 white socks. A man pulls out two socks. The probability that both the socks are of the same color is
Out of 40 consecutive natural numbers, two are chosen at random, then the probability that the sum of these numbers is odd, is
If the probability of A to fail in an examination is 0.2 and that for B is 0.3, then probability that either A or B is fail, is
0.5
0.44
0.8
0.25
The probability that in the toss of two dice, we obtain the sum 7 or 11, is
1/6
1/18
2/9
23/108
A normal die is rolled.The probability that the number on the uppermost face when it stops rolling will not be 5 is
2/6
3/6
5/6
The probability of choosing at random a number that is divisible by 6 or 8 from among 1 to 90 is
While in the calculation of GNP Horse gambling income should be
The probability that at least one of the events A and B occurs is 0.6. If A and B occur simultaneously with probability 0.2, then the value of
1.2
1.4
0.4
