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.
