16. Three taps A, B and C can fill an overhead tank in 6 hours, 8 hours and 12 hours
respectively. How long would the three taps take to fill the empty tank, if all of them are
opened together?
Answers
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2
Answer:
2 hrs 40 minutes
Step-by-step explanation:
taps A, B and C can fill an overhead tank in 6 hours, 8 hours and 12 hours
A can fill in 1 hr=1/6
B can fill in 1 hr=1/8
C can fill in 1 hr=1/12
ALL THREE IN 1 HR CAN FILL
= 1/6+1/8+1/12
=1/24(4+3+2)
=9/24=3/8
Time to fill the full tank
=1/(3/8) hrs
=8/3 hours
=8/3*60
=160 minutes
=2 hrs 40 minutes
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