11) * A reads 60 pages an hour, while B reads 40. If both read for 6 hours, what is the average
number of pages per person per hour? If each reads 400 pages, how will the answer change?
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Answers
Step-by-step explanation:
A reads 60 pages an hour, while B reads 40. If both read for 6 hours, what is the average number of pages per person per hour? If each reads 400 pages, how will the answer change?
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If A and B both read for 6 hours,
A reads a total of 360 pages (60 x 6)
B reads a total of 240 pages (40 x 6).
Thus, in all they read 600 pages (360 + 240). That makes it 300 pages per person.
Dividing it by 6 hours, the average number of pages per person per hour is 50.
If each reads 400 pages,
As A reads 60 pages and B reads 40 pages an hour, the total no. of pages they read in an hour are 100 (60 + 40).
Hence, the average number of pages per person per hour is 100/2 = 50.
Note: In this case, the total number of pages read doesn't matter as the number of pages read by each in an hour remains constant.