If three balls are randomly drawn from the bag, then what is the probability that one is Blue and other 2 are of other than Blue.

3/18

25/18

45/91

1/4

None of these

Correct Answer : C

The probability that a student is not a swimmer is 1/5. Then the probability that one of the five students, four are swimmers is:

What is the probability of getting a sum 9 from two throws of a dice?

Sum of digits of a 5 digit number is 41. Find the probability that such a number is divisible by 11?