If an object travels 300 feet in 5 seconds, what is the object's approximate speed in miles per hour? (Note: 1 mile = 5280 feet)
Answers:
A) 39  B) 38  C) 40  D) 41  E) 34
1 mile = 5280 feet   =&gt; 1 feet = 1/5280 miles   If the object travels 300 feet in 5 sec   then it travels 300/5 * 60 * 60 feet in 1 hour (1 hr = 60 min * 60 sec)   = 3600 * 60 feet in 1 hour   = 216000 feet in 1 hr   = 216000/5280 miles in 1 hour   = 21600/528 miles/hr ~ 41 miles/hr   Answer - 41
<result>D</result>
If an object travels 300 feet in 5 seconds, what is the object's approximate speed in miles per hour? (Note: 1 mile = 5280 feet)