Question

An elephant can run 1/4 of a mile in 36 seconds. At this rate, which expression can be used to determine how fast an elephant runs in miles per hour?

Answer 1

`(0.25~mile)/(36~s) * (60~s)/(1~min) * (60~min)/(1~hr) = 25 ~miles/hour`

Answer 2

Answer: 25 miles per hour

Step-by-step explanation: Since elephant run 1/4 miles in 36 sec

that means in 1 sec elephant runs 1/(4×36) miles

and 1 hour=60×60 sec

that means in 1 hour elephant runs (60×60)/(4×36) miles=25 miles

i.e. elephant runs 25 miles per hour