Permutation and CombinationHard
Question
The number of numbers of 4 digits which are not divisible by 5 are (when repetition is allowed)-
Options
A.7200
B.3600
C.14400
D.1800
More Permutation and Combination Questions
From 6 different novels and 3 different dictionaries, 4 novels and 1 dictionary are to be selected and arranged in a row...The number of non-negative integral solutions of x1 + x2 + x3 + x4 ≤ n (where n is a positive integer) is...Ten different letters of alphabet are given. Words with four letters are formed from these letters, then the number of w...In how many ways can 6 prizes be distributed equally among 3 persons?...A road network as shown in the figure connect four cities. In how many ways can you start from any city (say A) and come...