Multiple Choice Questions

A tank is to be filled completely with water for which 8 pipes of the same kind are used The tank ge...........

Quantitative Aptitude (MTS) Pipes&cistern

A tank is to be filled completely with water for which 8 pipes of the same kind are used. The tank gets filled in 1 hour and 40

minutes. If 10 pipes of the same kind, as mentioned above, are used, in how much time (in hours and minutes) will the tank be

completely filled?

This questions was previously asked in

SSC MTS 22nd October 2021 Shift-1

1 hour 30 minutes

1 hour 20 minutes

1 hour 45 minutes

2 hour 5 minutes

- Eight pipes fill the tank in 1 hour and 40 minutes, which is equivalent to 100 minutes.

- Together, they fill at a rate of 1 tank per 100 minutes.

- Therefore, one pipe fills the tank at a rate of 1/800 of the tank per minute.

- With ten pipes, the filling rate becomes 10/800 or 1/80 of the tank per minute.

- To find the time required for ten pipes, calculate the reciprocal of their combined rate: 80 minutes.

- Option:1 - 1 hour 30 minutes (90 minutes): Too long.

- Option:2 - 1 hour 20 minutes (80 minutes): The correct answer.

- Option:3 - 1 hour 45 minutes (105 minutes): Too long.

- Option:4 - 2 hours 5 minutes (125 minutes): Too long.

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