SSC CGL 2025 PYQ — Question 61

The correct answer is option 4 i.e. 7 hr 52 min 30 sec.

1 tap fills the tank in 14 hours

So, half a tank fills in 7 hours

Then 7 more similar taps opened.

Total taps = 8

If 1 tap fills in 14 hours, then 8 taps fill a full tank = $14\over8$ = $7\over4$ hours

So, half tank fills in = ${7\over4}\over 2$ = $7\over8$ hour

Total time = 7 + $7\over8$ × 60 = 7 hours 52 minutes 30 seconds