EASY
CAT
IMPORTANT
Earn 100
What is the probability of the destruction of the bridge if only bombs are dropped?
50% studentsanswered this correctly
Important Questions on Probability
EASY
CAT
IMPORTANT
Sanjay writes a letter to his friend from IIT, Kanpur. It is known that one out of 'n' letters that are posted does not reach its destination. If Sanjay does not receive the reply to his letter, then what is the prob ability that Kesari did not receive Sanjay's letter? It is certain that Kesari will definitely reply to Sanjay's letter if he receives it.
EASY
CAT
IMPORTANT
A word of letters is formed from a set of different letters of the English alphabet (with replacement). Find out the probability that exactly letters are repeated.
EASY
CAT
IMPORTANT
A number is chosen at random from the numbers to . By seeing the number, a man will sing if the product of the digits is . If he chooses three numbers with replacement, then the probability that he will sing at least once is:
EASY
CAT
IMPORTANT
In a bag, there are ten black, eight white and five red balls. Three balls are chosen at random and one is found to be black. The probability that the rest two are white is. Find the probability that the remaining two balls are white.
HARD
CAT
IMPORTANT
In a bag, there are ten black, eight White and five red balls. Three balls are chosen at random and one is found to be black. The probability that the rest two are white is.
find the probability that the remaining two balls are red.
EASY
CAT
IMPORTANT
Ten tickets are numbered . Six tickets are selected at random one at a time, with replacement. The probability that the largest number appearing on the selected ticket is is:
EASY
CAT
IMPORTANT
A bag contains tickets numbered to . A ticket is drawn and replaced. Then one more ticket is drawn and replaced. The probability that the first number drawn is even, and the second is odd is:
EASY
CAT
IMPORTANT
Six blue balls are put in three boxes. The probability of putting balls in the boxes in equal numbers is
