# How Much Distance Covered by the Boy? If

If a boy takes as much time in running 10 m as a car takes in covering 25 m, the distance covered by the boy during the time car covers 1 km is:

- 40 m
- 400 m
- 250 m
- None of these

**Answer: (2) 400 m**

**Explanation:-**

Let the speed of boy = X & the speed of car = Y

**Formula-**

**Time = distance/speed**

= 10/X = 25/Y

X/ Y = 10/25

1 km = 1000 m

Then,

Distance covered by boy = time taken by car for travelling 1000 m x speed of X

time taken by Y = 1000/Y

Then, distance covered by boy = 1000/X x Y

1000 x 10/25

= 400 m.

Hence, the answer is (2) 400 m.