College

Steve reads 80 pages in 2 hours and 40 minutes. If Cassandra reads twice as fast as Steve, how long will it take her to read a 300-page book?

A. 4 hours 40 minutes
B. 5 hours
C. 5 hours 20 minutes
D. 5 hours 40 minutes

Answer :

Answer:

Option B. 5 hours.

Step-by-step explanation:

Steve reads 80 pages in 2 hours and 40 minutes.

1 hour = 60 minutes

2 hour 40 minutes = (2 × 60) + 40 = 160 minutes

Speed of reading of Steve = [tex]\frac{80}{160}[/tex]

= 0.5 page per minute

Cassandra reads twice as fast as Steve.

Therefore, speed of reading of Cassandra = 0.5 × 2

= 1 page per minute

Therefore, time to read 300 pages by Cassandra = 300 × 1

= 300 minutes

Now convert minutes to hours

[tex]\frac{300}{60}[/tex]

= 5 hours

Cassandra will take 5 hours to read 300 page book.