Three pumps together

One pump fills the tank in 1.5 hours, the second in 2 hours, and the third in 3 hours 20 minutes. How many minutes will the tank fill with three pumps if they work simultaneously?

Correct answer:

t =  40.9091 min

Step-by-step explanation:

a=1.5 h min=1.5 60  min=90 min b=2 h min=2 60  min=120 min c=h2min(3+20/60)=200  s=a1+b1+c1=901+1201+2001=180020+180015+18009=180020+15+9=180044=450110.0244  t=1/s=1/45011=1:45011=1 11450=111 450=11450=11450 min=40.9091 min



Did you find an error or inaccuracy? Feel free to write us. Thank you!







Tips for related online calculators
Do you know the volume and unit volume, and want to convert volume units?
Do you want to convert time units like minutes to seconds?

You need to know the following knowledge to solve this word math problem:

    Units of physical quantities:

    Themes, topics:

    Grade of the word problem:


     
    We encourage you to watch this tutorial video on this math problem: video1

    Related math problems and questions: