New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Pipe A alone fill the tank in x hours and Pipe B alone

    fill the tank in (x – 8) hours. If the efficiency of pipe B is triple of pipe A and pipe A fill the tank is 55 liters per hour, then what is the capacity of the tank?
    A 675 liters Correct Answer Incorrect Answer
    B 660 liters Correct Answer Incorrect Answer
    C 600 liters Correct Answer Incorrect Answer
    D 630 liters Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Pipe A alone fill 55 liters per hour, so Pipe B alone fill 165 liters per hour. Capacity of the tank = T => T/55 – T/165 = x – (x – 8) => 3T – T = 1320 => T = 660 liters

    Practice Next

    Relevant for Exams: