If the chance that a vessel arrives safely at a port is $$\frac{{9}}{{10}}$$ then what is the chance that out of 5 vesse…

An urn contains 6 red, 5 blue and 2 green marbles. If three marbles are picked at random, what is the probability that a…

In a throw of dice what is the probability of getting number greater than 5

Two cards are drawn together from a pack of 52 cards. The probability that one is a spade and one is a heart, is-

The probability of success of three students X,Y and Z in the one examination are $$\frac{{1}}{{5}}$$, $$\frac{{1}}{{4}}…

The probability that A speaks truth is $$\frac{{3}}{{5}}$$ and that of B speaking truth is $$\frac{{4}}{{7}}$$. What is …

The probability that a number selected at random from the first 50 natural numbers is a composite number is -

A basket contains 4 red, 5 blue and 3 green marbles. If three marbles are picked up at random what is the probability th…