"Shalu cycles to her school at an average speed of 12   km/hr. It takes her 20 minutes to reach
Channel: Doubtnut
Date: 2020-07-12

"Shalu cycles to her school at an average speed of 12
 
  km/hr. It takes her 20 minutes to reach the school. If she wants to reach her
 
  school in 15 minutes, what should be her average speed?"