Question

1.the no 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 (b)7 (c)13 (d) 14

Answer 1

the answer is c) 13.

Answer 2

The answer is 13.
Which is option (c)