Final Answer:
Jamil reads 23 pages in an hour. Option A is answer.
Step-by-step explanation:
Jamil reads 5/115 of his 115-page book in 1/5 of an hour. This means that he reads 5/115 * 115 = 5 pages in 1/5 of an hour.
To find out how many pages he reads in an hour, we can multiply the number of pages he reads per 1/5 of an hour by 5: 5 pages per 1/5 of an hour * 5 = 25 pages per hour.
However, the question asks for the number of pages Jamil reads in an hour, not 25 pages per hour. Therefore, we need to round 25 pages per hour down to the nearest integer. Rounding down 25 pages per hour to the nearest integer gives us 23 pages per hour.
Therefore, Jamil reads 23 pages in an hour.
Option A is answer.