The fastest#2
Algebra
Level
2
• A whippet runs 50 feet in one second.
• An ostrich can run at 40 mph.
• A giraffe runs half a mile in a minute.
• A domestic cat scurries 15 yards in one second.
Which animal is fastest?
Whippet
Ostrich
Giraffe
Domestic cat
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1 solution
Change them all into mph.
A whippet runs 50 feet in one second = 50 ft/sec = 34.09 mph.
An ostrich can run at 40 mph.
A giraffe runs half a mile in a minute = 0.5 miles/min = 30 mph.
A domestic cat scurries 15 yards in one second = 45 ft/sec = 30.68 mph.
Therefore the ostrich is fastest.