Tank is fitted with two taps X and Y. In how much time will the tank be full if both the taps are opened together? Which of the followmgs statements is/are required to answer this question

(A) X is 50% more efficient than Y
(B) X alone takes 16 hours to fill the tank.
(C) Y alone takes 24 hours to fill the tank.

Choose the correct answer from the options given below·

1. (A) and (C) only
2. (A) and (B) only
3. (B) and (C) only.
4. Any two of the three.