A candidate is selected for interview for the three posts. For the first post there are 3 candidates, for the second there are 4 and for the third there are 2. what is the probability that the candidate getting at least one post?

A candidate is selected for interview for three posts. For the first post there are 3 candidates, for the second there are 4 and for the third there are 2. What are the chances of his getting at least one post ?

Three Coins are tossed: What is the probability of getting at least one tail?

The probability that a candidate passes in physics is 70% and that the passes in chemistry is 40% . What is the probability that the candidate passes in any one of the two subjects ?

Harpreet tosses two different coins simultaneously (say, one is of ₹ 1and other of ₹2.) What is the probability that she gets at least one heas?

There are three bags each containing 5 red and 5 black balls. One ball is transferred blindly from the first to the second bag and then one ball is transferred blindly from the second to the third. A ball is now drawn from the third bag. Find the probability that the drawn ball is red.

An anti-aircraft gun can take a maximum of four shots at an enemy plane moving away from it. The probabilities of hitting the plane at the first, second, third and fourth shot are 0.4, 0.3, 0.2 and 0.1 respectively. What is the probability that the gun hits the plane ?

An ordinary cube has 4 blank faces, one face mark 2 and another marked 3, then what is the probability of obtaining 12 in 5 throws?

Ramesh appears for an interview for two posts A and B, for which the selection is independent. The probability for his selection for post A is (1)/(6) and for post B it is (1)/(7) . Find the probability that Ramesh is selected for at least one post.

In a pack of 10 watches, 3 are known ot be defective. If 2 watches are selected at random from the pack, what is the probability that at least one is defective ?

The odds in favour of an event are 4:3 . The odds against another independent event are 2:3 . What is the probability that at least one of the events will occur ?