1 hour = 60 mins
Can read 60 mins ÷ 3 mins/page = 20 pages per hour.
In 5 hours can read 5 x 20 pages = 100 pages.
if she read 1 page in 3 minutes then she can read 60/3 pages in 1 hour = 20 if she can read 20 pages in 1 hour then she can read 20 x 5 pages in 5 hours = 100 pages answer 100 pages
120 pages. She reads 1 page in 1.5 min or 90 sec.
1 hour = 60 minutes5 hours = (5 x 60) = 300 minutes = (300 / 3) = 100 pages
6. One typist types one page in two minutes.
60 / 3 = 20 20 * 5 = 100 20 pages per hour x 5 hours = 100 pages in 5 hours
if she read 1 page in 3 minutes then she can read 60/3 pages in 1 hour = 20 if she can read 20 pages in 1 hour then she can read 20 x 5 pages in 5 hours = 100 pages answer 100 pages
120 pages. She reads 1 page in 1.5 min or 90 sec.
1 hour = 60 minutes5 hours = (5 x 60) = 300 minutes = (300 / 3) = 100 pages
5 hours = 5*60 = 300 minutes That is 300/3 = 100 lots of 3 minutes ie 100 pages.
Three-and-a-bit
1815 minutes, or 30.25 hours.
6. One typist types one page in two minutes.
1 page
It is 1.5 pages per minute or 2/3 minutes per page.
60 / 3 = 20 20 * 5 = 100 20 pages per hour x 5 hours = 100 pages in 5 hours
If she reads 150 pages in 5 hours, her reading rate is 1/2 page a minute or 30 pages per hour.
If David can type a 50-page paper in 8 hours, his typing rate is 50 pages / 8 hours = 6.25 pages per hour. In the case of David and Andy typing together, their combined rate is 50 pages / 6 hours = 8.33 pages per hour. Since David's rate is 6.25 pages per hour, Andy's rate is the difference: 8.33 - 6.25 = 2.08 pages per hour. Therefore, Andy would take 50 pages / 2.08 pages per hour = 24 hours to type a 50-page paper by himself.