1

COMEDK 2024 Morning Shift

MCQ (Single Correct Answer)

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If $$\left[{ }^{n+1} C_{r+1}\right]:\left[{ }^n C_r\right]:\left[{ }^{n-1} C_{r-1}\right]=11: 6: 3$$ then $$n r=$$

2

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

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$$\text { Find }{ }^n C_{21} \text {, if }{ }^n C_{10}={ }^n C_{12}$$

3

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

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There are 10 points in a plane out of which 4 points are collinear. How many straight lines can be drawn by joining any two of them?

4

COMEDK 2023 Morning Shift

MCQ (Single Correct Answer)

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The total number of numbers greater than 1000 but less than 4000 that can be formed using 0, 2, 3, 4 (using repetition allowed) are

Questions Asked from Permutations and Combinations (MCQ (Single Correct Answer))

Number in Brackets after Paper Indicates No. of Questions

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