Question

Tyler walks 1/4 miles in 1/12 hour. How many miles per hour is Tyler walking?

A) 2 miles per hour
B) 3 miles per hour
C) 6 miles per hour
D) 9 miles per hour

Answer 1

Tyler walks $\frac{1}{4}$ miles in $\frac{1}{12}$ hour. For 1 hour, you have to multiply by 12 since $\frac{1}{12} \times 12 = 1$.

$\frac{1}{4} \times 12 = \frac{12}{4} = 3$

Your answer is B) 3 miles per hour

Answer 2

To put the question in slightly different words: "What is Tyler's speed ?"

I said it that way because everybody knows the simple formula for speed:

Speed = (distance covered) / (time to cover the distance)

We know both of those numbers, so all we need to do is to pluggum in:

Speed = (1/4 mi) / (1/12 hr)

(1mi/4) ÷ (1hr/12) = (1mi/4) · (12/1hr) = (12mi / 4hr) = 3 mi/hr