The ratio of Boys to Girls in a college is `3:2` and 3 girls out of 500 and 2 boys out of 50 of that college are goods singers. A good singer is chosen. What is the probability that the chosen singer is a girl?

A number of two digits is formed using the digits 1, 2, 3, …., 9. What is the probability that the number so chosen is even and less than 60?

From a group of 5 boys and 3 girls, three persons are chosen at random. Find the probability that there are more girls than boys

3 mangoes and 3 apples are in a box. If 2 fruits are chosen at random, the probability that one is a mango and the other is an apple, is

Suppose there is a co-education school having 60% boys and 40% girls as students. The girl students have secured first class and second class in equal numbers and all boys secrured first class. A teacher selects a student at random and verifies the result. teacher observes thata student has secured first class in the examination. What is the probability that the student is a girl?

A box contains 10 mangoes out of which 4 are spoiled 2 mangoes are taken together at random. If one of them is found to be good, then the probability that the other is also good, is