Ask Question
1 August, 07:16

Max can mow a lawn in 45 minutes. Jan takes twice as long to mow the same lawn. If they work together, how long will it take them to mow the lawn?

a. 15.0 minutes

b. 22.5 minutes

c. 30.0 minutes

d. 120.0 minutes

+4
Answers (2)
  1. 1 August, 07:31
    0
    A

    Step-by-step explanation:

    30 min
  2. 1 August, 07:34
    0
    c. 30.0 minutes

    Step-by-step explanation:

    Max mows 1/45 lawns per minute.

    Jan takes twice as long (90 minutes per lawn), so mows 1/90 lawns per minute.

    Working together, they mow ...

    (1/45 + 1/90) lawns per minute = (2/90 + 1/90) lawn/min = 3/90 lawn/min

    = 1/30 lawn/min

    Then for one lawn, it takes ...

    (1 lawn) / (1/30 lawn/min) = 30 min
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “Max can mow a lawn in 45 minutes. Jan takes twice as long to mow the same lawn. If they work together, how long will it take them to mow ...” in 📗 Mathematics if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Search for Other Answers