If four coins are tossed, the probability of getting two heads and two tails is -

In a drawer there are 5 black socks and 3 green socks. Two socks are picked randomly one after the other without replace…

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 class, 30% of the students offered English, 20% offered Hindi and 10% offered both. If a student is selected at ran…

When two coins are tossed simultaneously, what are the chances of getting at least one tail?

A box contains 3 blue marbles, 4 red, 6 green marbles and 2 yellow marbles. If two marbles are drawn at random, what is …

Four cards are drawn at random from a pack of 52 playing cards. Find the probability of getting all the four cards of th…