Question

it takes 90 minutes to wash 20 vehicles at a car wash. how many minutes will it take to wash 5 vehicles at the same rate?

Answer 1

$<b>Heya mate. ^_^. Solution below.$
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$<u>Your Question -</u>$

It takes 90 minutes to wash 20 vehicles at a car wash. How many minutes will it take to wash 5 vehicle at the same rate.

$<u>Solution</u>$

We use the unitary method to solve the question.

Time taken to wash 20 vehicles = 90 minutes.

Then, time taken to wash 1 vehicle
= 90/20
= 4.5 min

So, time taken to wash 5 vehicles
= 4.5 × 5
= 22.5.


Hence, time taken to wash 5 vehicles = 22.5 minutes.
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Thank you. ;-)

Answer 2

Answer:

Step-by-step explanation: