Pipes A and B can fill a cistern in 8 and 24 minutes respectively. They are opened an alternate minutes. Find how many minutes, the cistern shall be full?\nOptions:\n(A) 10\n(B) 26\n(C) 12\n(D) 24\n(E) 48 Think first, then make a decision. Some random thoughts:
User
1/8 + 1/24 = 1/6\n6 * 2 = 12 So the answer is (C).
Assistant