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Bob and Ted are in the plumbing business. Bob can do the plumbing hook-up for a new house in 4 hours; Ted does the same job in 6 hours. If they work together, how long will they take to hook up the plumbing in one house? 2.1 hours 2.4 hours 5 hours

Respuesta :

The time that it will take for both Bob and Ted to hook up the plumbing in one house is; 2.4 hours

How to Solve Proportions?

We are given;

Time taken by bob to do the plumbing = 4 hours

Time taken by ted to do the plumbing = 6 hours

Now, if they work together, let the number of hours be x. Thus;

1/4x + 1/6x = 1

Multiply through by 12 to get;

3x + 2x = 12

5x = 12

x = 12/5

x = 2.4 hours

Read more about proportions at; https://brainly.com/question/1781657

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