HARD
IBPS PO Prelims
IMPORTANT
Earn 100

A box contains 5 green, 4 yellow and 3 white marbles, 3 marbles are drawn at random. What is the probability that they are not of the same colour?

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Important Questions on Permutation, Combination & Probability

EASY
IBPS PO Prelims
IMPORTANT
How many different letter arrangements can be made from out of the letters of the word RECOVER?
EASY
IBPS PO Prelims
IMPORTANT
How many three digit numbers can be having only two consecutive digits identical is _____ .
EASY
IBPS PO Prelims
IMPORTANT
How many total numbers of seven-digit numbers can be formed, the sum of whose digits is even?
HARD
IBPS PO Prelims
IMPORTANT
From a pack of 52 cards, 2 cards are drawn together at random. What is the probability of both the cards being king?
HARD
IBPS PO Prelims
IMPORTANT
The number of six-digit numbers that can be formed from the digits 1, 2, 3, 4, 5, 6, and 7 so that digits do not repeat and the terminal digits are even is:
HARD
IBPS PO Prelims
IMPORTANT
Three dice are rolled. The number of possible outcomes in which at least one dice shows 5 is _______.
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IBPS PO Prelims
IMPORTANT
The number of ways in which ten candidates A1, A2, ....,A10 can be ranked so that A1 is always above A2, is________.
HARD
IBPS PO Prelims
IMPORTANT
How many total number of ways in which n distinct objects can be put into two different boxes is ________.