Instructions

In the following questions numbered 1 to 20, a question is followed by data in the form of two statements labelled as I and II You have to decide whether the data given in the statement is sufficient to answer the questions.

Question 19

What is the number of divisors of n?
I. $$n = p^{5}, q^{4}$$ ; p,q are distinct primes
II. n is divisible by only two distinct pri1nes.


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