If $p ^ x = q ^ y = r ^ z$ where x, y and z are in GP, then consider the following statements:

I. p, q and rare in AP.

II. In p, In q and Inrare in GP.

Which of the statements given above is/are correct?

If A and B are non-empty subsets of a set, and $A ^ c$ and $ B ^ c$ represent their complements, then which of the following is/are correct?

I. A - B = $B ^ c - A ^ c$

II. $A - B ^ c = A ^ c - B$

Select the answer using the code given below.

Let y=x! and z = (2x)! If (z / y) = 120 then what is the value of (3x)!?

Let n be a natural number. The number of consecutive zeros at the end of the expansion of n! is exactly 2. How many values of n are possible?