Ask Question
MathematicsMathematics
20 November, 12:44

An earthquake strikes and an isolated area is without food or water. three crews arrive. one can dispense needed supplies in 4545 hours, a second in 9090 hours, and a third in 6060 hours. how long will it take all three crews working together to dispense food and water?

+3
Answers (1)
  1. 20 November, 14:36
    0
    It'll take 10 hours for the crew to finish the work.

    1 person takes 20h, the second would hake 30h, third 60h.

    1/20+1/30+1/60=1/10
Know the Answer?
Not Sure About the Answer?
Find an answer to your question ✅ “An earthquake strikes and an isolated area is without food or water. three crews arrive. one can dispense needed supplies in 4545 hours, a ...” in 📘 Mathematics if you're in doubt about the correctness of the answers or there's no answer, then try to use the smart search and find answers to the similar questions.
Search for Other Answers
You Might be Interested in
Which expression is equal to the number of grams (g) in 2.43 kilograms (kg) ?
Answers (1)
The population of a city grows at a rate of 5% per year. The population in 1990 was 400,000. What would be the predicted current population? In what year would we predict the population to reach 1,000,000?
Answers (1)
The difference between two whole numbers is 15. One of the numbers is 1. There are two possibilites for the second number. What are they?
Answers (1)
A spinner numbered 1 to 6 is spun twice. What is the probability of getting a 4 on the first spin and an even number on the second spin? A: 1/12 B: 1/4 C: 2/3 D: 1/6
Answers (1)
Distributive property to express 16+48
Answers (2)
New Questions in Mathematics
600,000+80,000+10 in a form
Answers (2)
See an algebraic equation to solve the problem. The sides of a triangle are in the ratio 3 : 4 : 5. What is the length of each side if that perimeter of the triangle is 90 cm?
Answers (1)
You are ordering packaging for a product. Should you be more concerned with volume or surface area?
Answers (1)
Use the drop-down menus to complete each equation so the statement about its solution is true. No Solutions 2x+9+3x+x= One Solution 2x+9+3x+x= Infinitely Many Solutions 2x+9+3x+x=
Answers (2)
Gi34[gerrvnjr[v f mre]m2mv2nrvrenvdms cd[no3enif]32nqinv21]n]fgj3jrn
Answers (2)
Home » Mathematics » An earthquake strikes and an isolated area is without food or water. three crews arrive. one can dispense needed supplies in 4545 hours, a second in 9090 hours, and a third in 6060 hours.
Sign Up Forgot Password?