Answer:
B. Judy plans to read a 120-page book. If she reads y pages per day, how many days will it take her to finish the book?
Explanation:
The expression given is 120/y.
Considering all the options
A. Judy is on page y of a 120-page book. How many more pages must she read to finish the book? This will give the expression 120 - y
B. Judy plans to read a 120-page book. If she reads y pages per day, how many days will it take her to finish the book?
If she reads y pages in 1 day
Then 120 pages will be read in (120/y) × 1
= 120/y . This is the right option.
C. Judy plans to read a book with y pages. If she reads 120 pages per week, how many weeks will it take her to finish the book?
The expression for this is y/120
D. Judy is on page 120 of a book with y pages. How many more pages must she read in order to finish the book?
The expression for this is y - 120
Hence the right answer is B. Judy plans to read a 120-page book. If she reads y pages per day, how many days will it take her to finish the book?