0:00
Hello everyone.
00:01
So this is the question that we have a group of students volunteer for a council car wash.
00:10
There's a person, mike, who can wash a car in m minutes.
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And john can wash that car in m minus two minutes.
00:28
While donna needs the same amount as mike.
00:36
So if they work...
00:38
All day together all day together so they can wash in a car in about 5 .5 minutes so we have to tell that how long time taken for each student for each student to wash the car so let's jump on the solution of the question.
01:14
So we know each and everybody's time taken.
01:18
So mike takes m minutes, so does donna and john takes m minus two minutes.
01:23
So we know that if they all work together, all day together, they wash 5 .5 they wash a car in 5 .5 minutes.
01:34
So part of wash mic completes.
01:39
Part of wash mic completes...