Question

a man walks 15 blocks to every morning at a rate 2miles/hr. if there are 20 blocks in a miles how long does it take him to walk? a)22 1/2 mins b) 15 mins c) 12 1/2 min d) 45 mind please explain​

Answer 1

ANSWER:

• 22.5 minutes did take him to walk.

Given :

• A man walks 15 blocks to work every morning at a rate of 2 miles per hour.

To find :

• If there are 20 blocks in a mile, how long does it take him to walk to work?

Step-by-step explanation :

Let x miles be in 15 blocks.

By Using a proportion ⟹

x miles/15 blocks = 1 mile/20 blocks

So,

x/15 = 1/2 [cross multiplication]

20x = 15

x = 15/20

x = 3/4

So, 15 blocks is 3/4 miles

Now,

Time = distance/speed

Substituting the values in the above formula, we get,

∴ (3/4) miles/ 2 mph

= (3/4)(1/2)

= 3/8 hrs

Or 22.5 minutes

Thus, 22.5 minutes he take to walk.