A tank was 3 5th empty To fill it completely pipe D was to be opened but accidentally pipe Q was ope...........

Quantitative Aptitude ( CCS) Pipes&cistern

Directions (): Chart 1 shows the percentage of time taken to fill the tank (Total time = 60 minutes) and Chart 2 shows the time taken to empty the tank. Table 1 shows the capacity of water carried by the leak pipe. Study the charts and table and answer the below questions.

A tank was 3/5th empty. To fill it completely, pipe D was to be opened, but accidentally pipe Q was opened. When it was noticed after 4 minutes, pipe Q was closed. And now to fill the tank quickly, pipe C was opened. What is the extra time taken to fill the tank due to the opening of pipe Q?

10 minutes

8.2 minutes

11 minutes

5.75 minutes

None of these

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