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Time and Work — MATHS STD 8 — Question

Gujarat BoardEnglish MediumSTD 8MATHSTime and Work1 Mark
MCQ
Two pipes can fill a tank in 10 hours and 12 hours respectively, while a third pipe empties the full tank in 20 hours. If all the three pipes operate simultaneously, in how much time will the tank be full?
  • A
    7 hrs 15 min
  • ✓
    7 hrs 30 min
  • C
    7 hrs 45 min
  • D
    8 hrs
✓

Answer

Correct option: B.
7 hrs 30 min
B

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