Question

Rohan to his school which is at 3 km from his home in 30 minutes. On reaching he finds that the school is

closed and comes back by a bicycle with his friend and reaches home in 20 minutes. His average speed in

km/h is​

Answer 1

Answer:

From rohan to school distance is 3 km time taken is 30 min = (30/60) hour = 0.5 hour

From rohan to school distance is 3 km time taken is 30 min = (30/60) hour = 0.5 hourAnd in returning from school to home time taken = 20 min = (20/60) hour = 0.33 hour

From rohan to school distance is 3 km time taken is 30 min = (30/60) hour = 0.5 hourAnd in returning from school to home time taken = 20 min = (20/60) hour = 0.33 houraverage speed = Total distance / time taken

From rohan to school distance is 3 km time taken is 30 min = (30/60) hour = 0.5 hourAnd in returning from school to home time taken = 20 min = (20/60) hour = 0.33 houraverage speed = Total distance / time taken= (3 + 3)/(0.5 + 0.33) km/h

From rohan to school distance is 3 km time taken is 30 min = (30/60) hour = 0.5 hourAnd in returning from school to home time taken = 20 min = (20/60) hour = 0.33 houraverage speed = Total distance / time taken= (3 + 3)/(0.5 + 0.33) km/h= 7.2 km/h

From rohan to school distance is 3 km time taken is 30 min = (30/60) hour = 0.5 hourAnd in returning from school to home time taken = 20 min = (20/60) hour = 0.33 houraverage speed = Total distance / time taken= (3 + 3)/(0.5 + 0.33) km/h= 7.2 km/h