Question

Q 13: 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.

Answer 1

30 minutes.
Hope this helps you!

Answer 2

Option C is correct

It will take them to mow the lawn is, 30 min

Explanation:

Given the statement: max can mow a lawn in 45 minutes.

⇒max can mow a lawn =
`(1)/(45)`

Also, it is given that: Jan takes twice as long to mow the same lawn

then;

Jan can mow a lawn =
`(1)/(90)`

If they work together:

Together they can mow a lawn =
`(1)/(45) + (1)/(90) = (2+1)/(90) = (3)/(90) =(1)/(30)`

Therefore, 30 min it will take them to mow the lawn.