Math, asked by ajit4391, 10 months ago

a man can do a job in 15 days.his father takes 20 days and his son finish the work in 25 days.how long will they take to complete if he all work together​

Answers

Answered by singhrajveer7779
2

Answer:

47/300 days = 6 whole 18/47 days.

Step-by-step explanation:

Work done by man in 15 days= 1

Work done by man in 1 day= 1/15

Work done by father in 20 days=1

Work done by father in 1 day= 1/20

Work done by son in 25 days=1

Work done by son in 1 day=1/25

Work done by altogether= Work of man+Work of father+Work of son

= (1/15+1/20+1/25)days

=(20+15+12/300)days

=47/300 days = 6 whole 18/47 days.

Hope it will help you

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