In a box, there are 2 red, 3 black and 4 white balls. Out of these, three balls are drawn together, then the probability of the balls drawn are of the same color 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
Five horses are in a race. Mr.A selects two of the horses at random and bets on them. The probability that Mr. A selected the winning horse 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 of choosing at random a number that is divisible by 6 or 8 from among 1 to 90 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
Three squares of chess board are chosen at random, then the probability that two are of one color and one of another is
A number is chosen at random among the first 120 natural numbers. The probability if the number chosen being a multiple of 5 or 15 is
1/8
1/5
1/24
1/6
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