In what time can Sonali cover a distance of 400 m, if she runs at a speed of 20 km/hr?
$1 \frac{1}{5}~min$
$1 \frac{1}{2} ~min$
$2~ min$
$3 ~min$
Given :
Distance = 400 meters ,
Speed = 20 km/hr = 20000/60 = 333.33 meters/min
Time = Distance/speed
= 400 / 333.33 ~ 1.2 minutes
= 6/5 minutes
= 1 1/5 minutes
Answer : option 1