Your school is 600 meters away from your home. Your walking speed is 200 meters per minutes. One day you set out from your home and walk to school. After a few minutes, you are 100 meters away from your school. Which of the following equations represents the minutes, m, you have walked?

a. 600 + 200m = 100

b. 600 - 200m = 100

c. 600/200m = 100

d. 200/600m = 100

Option B

The equation that represent the minutes you have walked is 600 - 200m = 100

Solution:

Given that Your school is 600 meters away from your home

Your walking speed is 200 meters per minutes

Therefore,

total distance between school and home = 600 meters

walking speed = 200 meters per minute

Let "m" be the number of minutes you walked

One day you set out from your home and walk to school

After a few minutes, you are 100 meters away from your school

Therefore, remaining distance to be covered = 100 meters

If "m" represents the number of minutes walked, then distance covered in "m" minutes is given as,

distance = speed x time

distance = 200 x m = 200m

So in the total distance of 600 meters, he has covered 200m and remaining distance is 100 meters

From the above statement we can frame a equation as,

total distance - already covered distance = remaining distance

600 - 200m = 100

Thus option B is correct