If 3(x - y) = 27 and 3(x + y) = 243, then x is equal to:

If 3^{(x - y)} = 27 and 3^{(x + y)} = 243, then x is equal to:

A 0

B 2

C 4

D 6

Correct Answer: Option C

3x - y = 27 = 33 or, x - y = 3 ....(i)

3x + y = 243 = 35 or, x + y = 5 ....(ii)

On solving (i) and (ii), we get x = 4.