Marcus painted one third of his bedroom in fourth fifths of an hour. At this rate, how long would it take him the paint the entire room? five twelfths hour twelve fifths hours fifteen fourths hours four fifteenths hour

Question

Ryan Casey

Mathematics

17 April, 15:49

Marcus painted one third of his bedroom in fourth fifths of an hour. At this rate, how long would it take him the paint the entire room? five twelfths hour twelve fifths hours fifteen fourths hours four fifteenths hour

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Answers (1)

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Deangelo Stevenson · Answer 1

The rate that Marcus works is (1/3) of the job in (4/5) of an hour ...

(1/3) / (4/5) = 1/h

(1/3) (5/4) = 1/h

5/12=1/h

5h=12

h=12/5

So Marcus will take 12/5 hours to complete the job.