1
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
The value of $$1\,.\,1! + 2\,.\,2! + 3\,.\,3! + \,...\, + \,n\,.\,n!$$ is
2
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
The number of triangles which can be formed by using the vertices of a regular polygon of $$(n+3)$$ sides is 220. Then, $$n$$ is equal to
3
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
Out of 8 given points, 3 are collinear. How many different straight lines can be drawn by joining any two points from those 8 points?
4
COMEDK 2021
MCQ (Single Correct Answer)
+1
-0
How many numbers greater than 40000 can be formed from the digits 2, 4, 5, 5, 7?
Questions Asked from Permutations and Combinations (MCQ (Single Correct Answer))
Number in Brackets after Paper Indicates No. of Questions
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