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Taps P and Q can fill up a jug in 50 seconds and 40 seconds respectively. Tap R (which is attached 40 the jug) can empty the jug in 30 seconds. If taps Q and R are opened in tum, in that order, for 3 seconds each, then in how many seconds will the empty jug be filled? (A) 600/7 (B).256 (D) 230.6?
Most Upvoted Answer
Taps P and Q can fill up a jug in 50 seconds and 40 seconds respective...
Calculation:

Step 1: Calculate the rate of filling and emptying
- Tap P fills 1/50 of the jug in 1 second
- Tap Q fills 1/40 of the jug in 1 second
- Tap R empties 1/30 of the jug in 1 second

Step 2: Calculate the net rate of filling the jug
- When taps Q and R are opened for 3 seconds each, the net rate of filling the jug = (1/40 - 1/30) = 1/120
- This means the jug is filled at the rate of 1/120 per second

Step 3: Calculate the time taken to fill the jug completely
- To fill the jug completely, we need to find out how many seconds it will take to fill 1 whole jug
- Time taken = 1 / (1/120) = 120 seconds
Therefore, the empty jug will be filled in 120 seconds.

Correct Answer: 120 seconds
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Taps P and Q can fill up a jug in 50 seconds and 40 seconds respectively. Tap R (which is attached 40 the jug) can empty the jug in 30 seconds. If taps Q and R are opened in tum, in that order, for 3 seconds each, then in how many seconds will the empty jug be filled? (A) 600/7 (B).256 (D) 230.6?
Question Description
Taps P and Q can fill up a jug in 50 seconds and 40 seconds respectively. Tap R (which is attached 40 the jug) can empty the jug in 30 seconds. If taps Q and R are opened in tum, in that order, for 3 seconds each, then in how many seconds will the empty jug be filled? (A) 600/7 (B).256 (D) 230.6? for UPSC 2024 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Taps P and Q can fill up a jug in 50 seconds and 40 seconds respectively. Tap R (which is attached 40 the jug) can empty the jug in 30 seconds. If taps Q and R are opened in tum, in that order, for 3 seconds each, then in how many seconds will the empty jug be filled? (A) 600/7 (B).256 (D) 230.6? covers all topics & solutions for UPSC 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Taps P and Q can fill up a jug in 50 seconds and 40 seconds respectively. Tap R (which is attached 40 the jug) can empty the jug in 30 seconds. If taps Q and R are opened in tum, in that order, for 3 seconds each, then in how many seconds will the empty jug be filled? (A) 600/7 (B).256 (D) 230.6?.
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