A brother and sister appear for an interview against two vacant posts in an office. The probability of the brother's selection is 1/5th and that of the sister's selections is 1/3rd. What is the probab
A). 1/5
B). 2/5
C). 1/3
D). 2/3
In his wardrobe, Girdhari has 3 trousers. One of them is grey the second blue and the third brown. In his wardrobe he also has 4 shirts. One of them is grey and the other 3 are white. He opens his war
A). 1/12
B). 1/6
C). 1/4
D). 1/2
Raja can hit a target 3 times in 6 shots, Karan can hit the target 2 times in 6 shots and Ashwini can hit 4 times in 4 shots. What is the probability that atleast 2 shots hit the target ?
A). 1/2
B). 2/3
C). 1/3
D). 5/6
In a bag containing three balls, a white ball was placed and then one ball was taken out at random. What is the probability that the extracted ball would turn on to be white, if all possible hypothesi
A). 5/8
B). 3/4
C). 1/2
D). 3/8
From a pack of 52 playing cards, two cards are drawn together at random. Calculate the probability of both the cards being king ?
A). 1/15
B). 25/57
C). 35/256
D). None of these