Question

Three taps A,B and C can fill an empty water tank in 12 hours,16 hours and 24 hours,respectively. How long would the three taps take to fill the empty water tank if all of them are opened simultaneously?

Answer 1

Answer:

I/12+I/16 +1/24=(4+ 3+2)/48=9/48

3/16

16/3=5 1/3 hrs will be taken to empty the tank