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Question

The number of positive integers n in the range 12<n<40 such that the product (n-1)(n-2)...3.2.1 is not divisible by n is:


A

5

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B

7

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C

13

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D

14

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Solution

The correct option is B

7


The question is asking you for all prime numbers between 12 and 40. There are 7 prime numbers.


Accountancy

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