Two red counters, three green counters and four blue counters are placed in a row in random order. The probability that no two blue counters are adjacent is

Study the given information carefully to answer the question that follow. An urn contains 4 green, 5 blue, 2 red and 3 yellow marbles. If four marbles are drawn at random, what is the probability that two are blue and two are red ?

An urn contains 9 balls two of which are red, three blue and four black. Three balls are drawn at random. The probability that they are of same colour is

Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If four marbles are picked at random , what is the probability that at least one is blue ?

Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If four marbles are picked at random , what is the probability that one is green , two are blue and one is red ?

Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If three marbles are picked at random, what is the probability that two are blue and one is yellow?

A box contains 2 blue caps, 4 red caps, 5 green caps and 1 yellow cap. If three caps are picked at random, what is the probability that two are red and one is green?

An urn contains 4 green , 5 blue ,2 red and 3yellow marbles . If four marbles are drawn at randon , what is the probability that two are blue and two are red ?

Anurn contains 6 red,4 blue ,2 green and 3yellow marbles If two marbles are picked at random , what is the probability that both are red ?

A basket contains 3 blue, 2 green and 5 red balls. If three balls are picked at random, what is the probability that atleast one is red?