ATQ, 
So in 18 number the ‘R’ alphabet will come.
A letter is taken out at random from ‘CHACHAKE’ and another is taken out from ‘PATAKHE’. The probability that they are the same letter is
...What is the probability that a number selected from 1,2,3.......................68,69,70, is perfect square or a perfect cube?
34 pens are there in a box where 10 are red pens, ‘p’ are blue pens and remaining are black pens. If a pen is picked, the probability of getting blu...
A bag contains black and white balls, such that the probability of picking a black ball is 4/7. If the probability of picking two black balls without re...
In an examination, there are a hundred questions. For each correct answer four marks will be awarded and for each wrong answer two marks will deduct whi...
Two hats are picked at random, what is the probability that all hats are of green colour?
18 rotten bananas are accidentally mixed with 132 good ones. It is not possible to just look at a banana and tell whether or not it is rotten. One banan...
Find the probability that a number selected at random from first hundred number is a multiple of 3 or 5?
Three persons. A, B and C. are given the same puzzle to solve. The probability that A, B and C will solve the puzzle is. 3/5., 2/3., and 1/4respectively...
Suppose p and q be two real functions continuous at a real number t. Then which of the following is true
