Question

Rani has to travel from Mangalore to Kottayam but due to short of time , she managed to get the train ticket from Kozhikode to Kottayam only . she travelled by local transport from Mangalore to Kannur 120 km in 7 hours , Kannur to Kozhikode in bus 80 km in 5 hours , and Kozhikode to Kottayam by train to 240 km in 10 hours what is the average speed of Rani?

• A. 20 km/hr
• B. 25 km/hr
• C. 8 m/s
• D. 10 m/s

Answer 1

Answer:

A. 20 km/hr

average speed = total distance / total time taken Total distance = 120 + 80 + 240 = 440 total time taken = 7 + 5 + 10 = 22 hours average speed = 440/22 = 20 km/hr