The question below is followed by three statements I, II, and III. You have to determine whether the data given is sufficient for answering the question. You should use the data and your knowledge of mathematics to choose the best possible answer. A water tank is to be filled. Pipe A is opened for 10 minutes and then closed. After that pipe, B is opened and the remaining tank is filled by Pipe B alone. In how much time pipe B filled the remaining tank working alone? I. Pipe A and B together can fill a tank in 12 minutes. II. Pipe B, C, can fill a tank in 10 minutes. The ratio of their efficiency is 1 : 2 III. Pipe D and C can fill a tank in 12 minutes

The question below is followed by three statements I, II, and III. You have to determine whether the data given is sufficient for answering the question. You should use the data and your knowledge of mathematics to choose the best possible answer. A water tank is to be filled. Pipe A is opened for 10 minutes and then closed. After that pipe, B is opened and the remaining tank is filled by Pipe B alone. In how much time pipe B filled the remaining tank working alone? I. Pipe A and B together can fill a tank in 12 minutes. II. Pipe B, C, can fill a tank in 10 minutes. The ratio of their efficiency is 1 : 2 III. Pipe D and C can fill a tank in 12 minutes Correct Answer Statement I and II together is sufficient

Let the total work = 60 units

From I

Efficiency of A + B working together = 60/12 = 5

From II

Efficiency of C + B working together = 60/10 = 6

Efficiency of B = 6 × (1/3) = 2

Efficiency of A = 5 – 2 = 3

We know the ratio of efficiency, we can calculate the time taken by pipe B to fill the remaining tank

Question can be answered using statement I and II together

Related Questions

Each question below is followed by two statements I and II. You have to determine whether the data given in the statements are sufficient for answering the question. You should use the data and your knowledge of Mathematics to choose the best possible answer. Two pipes P2 and P3 can fill a tank in 30 and 20 hours respectively. Starting with P1, followed by P3 and then P2 each pipe opens for alternatively for one-hour, till the tank gets filled up completely. In how many hours the tank will be filled completely?  I. Pipe P1 can fill the tank in 25 hours. II. Pipe P1 and P4 can fill the tank in 20 hours.
Each question below is followed by two statements I and II. You have to determine whether the data given in the statement is sufficient for answering the question. You should use the data and your knowledge of Mathematics to choose the best possible answer. P, Q and R together can complete a work in 12 days. All of them worked together for 6 days and then P left. How much time will Q and R together will take to complete the remaining work? I. If P completes a work in X number of days, then Q and R together complete the work in X number of days. II. After leaving the work, P completed another work in 10 days.