1
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0
In how many ways can the word "CHRISTMAS" be arranged so that the letters '$$\mathrm{C}$$' and '$$\mathrm{M}$$' are never adjacent?
2
COMEDK 2024 Morning Shift
MCQ (Single Correct Answer)
+1
-0
If $$\left[{ }^{n+1} C_{r+1}\right]:\left[{ }^n C_r\right]:\left[{ }^{n-1} C_{r-1}\right]=11: 6: 3$$ then $$n r=$$
3
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0
$$\text { Find }{ }^n C_{21} \text {, if }{ }^n C_{10}={ }^n C_{12}$$
4
COMEDK 2023 Morning Shift
MCQ (Single Correct Answer)
+1
-0
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?
Questions Asked from Permutations and Combinations (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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