How many minutes does Aditya take to cover a distance of 400 m, if he runs at a speed of 20 km/hr?
Choose the correct choice from the following answers.
A) 1 1/5min	B) 4 1/5min	C) 3 1/5min	D) 2 1/5min	E) None of these
Explanation :   We know that,Time=Distance/SpeedSpeed=20 km/hr=20 x 5/18m/sec=509m/secTime =(400 x 9/50) = 72sec=1 1/5min   1 1/5minnswer : 1 1/5min
<result>A</result>
How many minutes does Aditya take to cover a distance of 400 m, if he runs at a speed of 20 km/hr?