Ten men working for 6 days can co plete 5 copoes of a book.If there are 8 men working to complete 4 copies of the book, how many days will it take?
Ten men working 6 days complete 5 copies of a book
So total effort put is 10* 6 man days = 60 man days are needed to complete 5 copies of a book
8 men working x days complete 4 copies of a book
thus 8x man days are needed for completing 4 copies of a book
No of Man days is directly proportional to the number of copies of the book because more the man days more the copies of the book
60 mandays results in 5 copies thus
1 copy in 60/5 = 12 man days
4 copies in 4*12 mandays = 48 mandays
Thus 8 people working x days put in 8x man days to complete 4 copies of the book
and 8x = 48
x = 6
thus 6 days are needed by 8 people to complete 4 copies
So total effort put is 10* 6 man days = 60 man days are needed to complete 5 copies of a book
8 men working x days complete 4 copies of a book
thus 8x man days are needed for completing 4 copies of a book
No of Man days is directly proportional to the number of copies of the book because more the man days more the copies of the book
60 mandays results in 5 copies thus
1 copy in 60/5 = 12 man days
4 copies in 4*12 mandays = 48 mandays
Thus 8 people working x days put in 8x man days to complete 4 copies of the book
and 8x = 48
x = 6
thus 6 days are needed by 8 people to complete 4 copies