It will take both computer 24.75 minutes to do the job together.
How will the job minute be calculated?
Given that the slower computer can send all the company's email in 55 minutes and faster computer can complete the same job in 45 minutes.
That is, slower computer does 1/55 of the e-mails per minute and the faster computer does 1/45 of the e-mails per minute.
=> 1/45 + 1/55
= 45+55/2475
= 100/2475
Given that total minute is 100 minutes, then, we will divide it with the above fraction to derive the answer.
=> 2,475/100
=> 24.75 minutes
Therefore, it will take both computer 24.75 minutes to do the job together.
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