Question

Find the speed that must be maintained constantly to cover a distance of 11 miles in 20 minutes?

• A. 27 miles/hour
• B. 33 miles/hour
• C. 39 miles/hour
• D. 44 miles/hour

Answer 1

The correct option is B 33 miles/hour

Let the speed be '$x$' miles/hour
Given:
Time taken = 20 minutes = $\frac{1}{3}$ hour
Total distance covered = 11 miles
Time = $\frac{Distance}{Speed}$
$\frac{1}{3}$ = $\frac{11}{x}$
$x=11\times 3$
$x=33$ miles/hour