Two mechanics, martin and gordon, are working on your car. Martin can complete the work in 4 hours, while gordon can complete the work in 2 hours. How many hours does the maintenance take if they work together?
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Step-by-step explanation:
Let x be the time in hours it takes for Martin and Gordon to finish the job if they work together. Within this time, Martin and Gordon do x/4 and x/2 work individually, respectively. The sum of the two works should be equal to 1.
x/4 + x/2 = 1
The value of x is 1 1/3. Thus, the answer is letter D. 4/3 hours.
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