Armando read 20 pages of his 200-page book in 4 hours. At this rate, how long will it take him to read the entire book?

HAPPY 7 - you need to rethink this answer!

He only reads 5 pages in 1 hour - so it is  200/5 hours

200/20=10

4*10=40

40 hours= 1 day and 16 hours

1 day and 16 hours