If an object travels 300 feet in 6 seconds, what is the object's approximate speed in miles per hour? (Note: 1 mile = 5280 feet)
Pick one:
A) 30
B) 31
C) 32
D) 33
E) 34

Rationale: "1 mile = 5280 feet = > 1 feet = 1 / 5280 miles if the object travels 300 feet in 6 sec then it travels 300 / 6 * 60 * 60 feet in 1 hour ( 1 hr = 60 min * 60 sec ) = 3600 * 50 feet in 1 hour = 180000 feet in 1 hr = 180000 / 5280 miles in 1 hour = 18000 / 528 miles / hr ~ 34 miles / hr answer - e"
Answer: E