One book conclude 300 pages...
2006-06-05 18:29:36 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
4 pages in 5 minutes
1 page in 5/4 min.=
1 page in 1.25 minutes
300 pages (1 book)in= 1.25x300 = min.
=375 minutes
1 day 6 hours means 360 minutes
in 10 days 360x10 = 3600 minutes
3600 minutes and typing at the rate of 375 minutes per book
3600/375 =9.6 books
2006-06-06 02:12:36 · answer #1 · answered by Anonymous · 1⤊ 1⤋
Job problems:
amount of work done / [(# of workers)(work time)] = constant =
another amount of work done / [(# of workers)(work time)]
This is a ratio and proportion problem.
You may have to put the unit of the variables so you will know what will be the unit of the unknown quantity.
In your case:
4 page / (3 typist) (5 min) = # pages / ( 3 typist)(10x6x60 min)
If you have the number of pages then you will be able to compute for the number of books.
The number of typists will cancel. But the formula is a general one which will be applicable when only 2 or even 4 reported for work.
2006-06-06 01:51:52 · answer #2 · answered by dax 3 · 0⤊ 0⤋
6 hrs = 72 X 5 mins.
10 days = 72 X 5 X 10 minxs.
Num. of pages = 72 X 5 X 10 X (4 / 5 )
=2880
thus no of books = 9.6
2006-06-06 01:35:47 · answer #3 · answered by Sean 3 · 0⤊ 0⤋
The number of typists seems irrelevant, The typing pool will produce 2880 pages or 9.6 books in the time specified.
2006-06-06 02:07:52 · answer #4 · answered by Not_many_people_know_this_but 3 · 0⤊ 0⤋