The number of five–digit telephone numbers having at least one of their digits repeated is
The number of five–digit telephone numbers which can be formed using the digits of 0, 1, 2,...., 9 is 105. The number of five-digit telephone numbers which have none of their digits repeated is 10P5 = 10 × 9 × 8 × 7 × 6 = 30240 Hence the required number =105 - 30240 = 69760
Find the ratio of number of surgical mask to the number of N95 masks sold on Tuesday.
Find the ratio between X and Y.
Total number of flowers sold by shop A is approximately how much percent less than the total number of flowers sold by shop C?
Find the total number of students who play Football.
Find the ratio between the number of male employees in Production department and number of female employees in Marketing department.
Total number of students who play exactly 1 more game along with Cricket are how much more or less than total number of students who play exactly 2 mor...
What is the difference between number of employees who are married (male + female) and unmarried (male + female)?
Initial quantity of water in vessel A is what percent of the initial quantity of P1 in vessel C?
The total number of employees working in the Accounts department forms what per cent of the total number of employees in the organization?