COMEDK 2024 Evening Shift | Permutations and Combinations Question 13 | Mathematics

The letters of the word "COCHIN" are permuted and all the permutations are arranged in alphabetical order as in an English dictionary. The number of words that appear before the word "COCHIN" is

192

360

COMEDK 2024 Afternoon Shift

MCQ (Single Correct Answer)

-0

The number of four digit numbers strictly greater than 4321 formed using the digits $$0,1,2,3,4,5$$ with repetition of digit is

274

310

312

292

COMEDK 2024 Afternoon Shift

MCQ (Single Correct Answer)

-0

A student has 3 library cards and 8 books of his interest in the library. Out of these 8 books he does not want to borrow Chemistry part 2 unless he can borrow Chemistry part 1 also. In how many ways can he choose the three books to be borrowed?

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

-0

In how many ways can the word "CHRISTMAS" be arranged so that the letters '$$\mathrm{C}$$' and '$$\mathrm{M}$$' are never adjacent?

$$8!\times \frac{9}{2}$$

$$8!\times \frac{7}{2}$$

$$7!\times \frac{9}{2}$$

$$9!\times \frac{7}{2}$$

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