Shabnam takes 20 minutes to reach her school if she goes at a speed of 6 km/h. If she wants to reach school in 24 minutes, what should be her speed?
Shabnam’s speed = 6 km/h = 
m/min
∴ Total distance covered by Shabnam in 20min = 
= 
= 2000m
If she wants to reach the school in 24 min, then should maintain the speed = 
= 
m/min
= 
km/h
89