Question

A speed walker covered 4 1/2 mi in 3/4 hour. How far will he walk in 3/4 hour if he walks?

Answer 1

Given:

Consider the complete question is "A speed walker covered $4\dfrac{1}{4}$ mi in $\dfrac{3}{4}$ hour. How far will he walk in 3/4 hours if he walks twice as fast?"

A speed walker covered $4\dfrac{1}{4}$ mi in $\dfrac{3}{4}$ hour.

To find:

Distance covered by him if in 3/4 hour if he walks twice as fast.

Solution:

We have,

$Distance=4\dfrac{1}{2}=\dfrac{9}{2}$

It means a speed walker covered $\dfrac{9}{2}$ mi in $\dfrac{3}{4}$ hour.

If the speed is twice then he can cover double distance is same time.

Distance covered by him if in 3/4 hour if he walks twice as fast is

$2\times \dfrac{9}{2}=9$

Therefore, distance covered by him is 9 mi.