Answer:
6 minutes
Explanation:
✓Sam walks 2 km in 30 minutes.
2 km = 30 minutes. ........(1)
How much time will he take to cover 400m?
But 400m= 0.4km
Let the time will he take to cover
0.4 km= x........(2)
Then we have
2 km = 30 minutes.
0.4km= x
Then cross multiply, we have
2km × X = (30×0.4)
X= (30×0.4)/2
X= 12/2= 6 minutes
