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Aisha is spending a week at her family's cottage and wants to read her favourite book, which is 400 pages long. A) If she reads one page every 36 seconds, how many hours will it take her to read her book? B) Suppose Aisha only reads from 10:15 a.M. To 2:10 p.M., and from 7:20 p.M. To 9:00 p.M. Each day, starting on Monday. On what day and at what time will she finish reading her book? C) Aisha decides to read a second book that is 350 pages in length, starting right after finishing her first book. If she continues to read at the same speed, then when will she finish her second book?

Sagot :

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Answer:

A) 4 hours

B) 7:25 PM on the same Monday.

C) 12:10 PM on Tuesday.

Step-by-step explanation:

Given that:

Number of pages in the first book = 400

A) Time taken to read each page = 36 seconds

To find the number of hours taken to finish reading the book, we need to first find the number of seconds taken to finish reading the book.

Time taken by Aisha to finish reading 400 pages = 400 [tex]\times[/tex] 36 = 14400 seconds

3600 seconds = 1 hour

14400 seconds = [tex]\frac{1}{3600}\times 14400[/tex] hours = 4 hours

B) Reading timings of Aisha :

1st time = 10:15 AM to 2:10 PM i.e. a duration of 3 hours and 55 minutes

2nd time = 7:20 PM to 09:00 PM i.e. a duration of 1 hour and 40 minutes

4 hours are taken to read this book.

So, it will require 5 more minutes after the 1st reading time.

Therefore, Aisha will finish reading at 07:25 PM on same Monday.

C) Second book has 350 pages.

Time taken to read 350 pages = [tex]\frac{350\times 36}{3600}[/tex] = 3.5 hours

She starts reading at 07:25 PM on Monday.

Up to, 9 PM, a duration of 1 hour and 35 minutes will be utilized for reading the second book.

A total of 1 hour and 55 minutes more will be required.

Therefore, the second book reading will be finished at 12:10 PM on Tuesday.

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