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How many words can be formed from the letters of the word ‘COURTESY’ whose first letter is C and the last letter is Y?
How many words can be made from the letter of the word ‘COMMITTE’?
The demotes the number of permutations of x+2 things taken 11 at a time and c the number of x things taken 11 at a time and c the number of permutation of x-11 things taken all at a time such that a=182 bc, then the value of x is.
The number of numbers that can be formed with the help of the digits 1,2,3,4,3,2,1, so that odd digits always occupy odd places, is
In election there, are 5 candidates and three vacancies. A Voter can vote maximum to three candidates, than in how many ways can he vote?
Six ‘+’ and four ‘-‘ signs are to placed in a straight line, so that no two ‘-‘ signs come together, then the total number of ways are.
A student is allowed to select atmost n books from a collection of (2n+1) books. If the total number of ways in which he can select one book is 63, then the value of n is.
The greatest possible number of points of intersection of 8 straight lines and 4 circles is:
The number of ways in which the letters off the word TRIANGLE can be arranged such that two vowels do not occur together is
A car will hold 2 in the front seat and I in the rear seat. If among 6 person 2 can drive, then the number of ways in which the car be filled is