6.
One typist types one page in two minutes.
6
If everyone types at the same rate, three.
Assuming the typists all type at the same speed...Two typists typing two pages in five minutes means it takes 1 typist five minutes to produce 1 page.In ten minutes, each typist could produce two pages. So to produce twenty pages in that time, you'll need ten typists.
6
12 pages in 6 minutes = 2 pages per minute. 96 pages at 2 pages per minute = 96/2 = 48 minutes.
36
6
If everyone types at the same rate, three.
Assuming the typists all type at the same speed...Two typists typing two pages in five minutes means it takes 1 typist five minutes to produce 1 page.In ten minutes, each typist could produce two pages. So to produce twenty pages in that time, you'll need ten typists.
If two typists type 2 pages in 5 minutesIn 1 minute they will type 2/5pagestherefore 2 typists type 2/5 pages in 1 minute1 typist will type (2/5)/2 pages in 1 minute(he will type less)=1/5 pages.... eqn 1x typists type 20 pages in 10 minutesin 1 minute they will type 20/10 pages=2 pagestherefore x typists type 2 pages in 1 minute1 typist will type 2/x pages............eqn 2equating eqn 1 and 2 gives 2/x=1/5therefore x =10 typists
It will take 48 minutes to proofread 96 pages. Since you can proofread 12 pages in 6 minutes, you can proofread 96 pages in 48 minutes (12 pages x 8 = 96 pages).
6
12 pages in 6 minutes = 2 pages per minute. 96 pages at 2 pages per minute = 96/2 = 48 minutes.
It will take 96/12 = 8 and 8 times 6 = 48 minutes
Three-and-a-bit
If 100 pages are printed in 5 minutes, then 50 pages would take half the time, which is 2.5 minutes.
It will take 48 minutes.