Question

In order to complete a reading assignment on time,Terry planned to read 90 pages per day. However,she read only 75 pages per day at first, leaving 690 pages to be read during the last 6 days before the assignment was to be completed. How many days in all did Terry have to complete the assignment on time?

• A. 15
• B. 16
• C. 25
• D. 40
• E. 46

Answer 1

Answer: (B)

16

Let the number of days Terry read at 75 pages/days be x.

Then the total number of pages = 75x + 690 and

The total number of days Terry took to complete the assignment = x+6

But from the first statement of the question stem. The total number of pages = 90*(x+6)

Since total number of pages in both the cases is equal

75x + 690 = 90x + 540. So 15x = 150 and x = 10.

Total number of days required = x+6 = 10+6 = 16 (option B)