Question

PLEASE ANSWER THIS!!!!!!


39 persons can repair a road in 12 days, working 5 hours a day. in how many day will 30 persons working 6 hours a day complete the work?

Answer 1

Let the required number of days be x.

Less persons, More days (Indirect Proportion)

More working hours per day, Less days (Indirect Proportion)

Persons 30: 39:: 
12 : x
Working hours/day 6 : 5

 30 x 6 x x = 39 x 5 x 12

x =(39 x 5 x 12)(30 x 6)

x = 13


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Answer 2

this question answer is 13x.
I hope this is right answer.