A man travels from Gurugram to Jaipur, a distance of 240 km, at a speed of 60 km/h. He then takes a break in Jaipur for 1 hour. After the break, he travels from Jaipur to Ajmer, a distance of 130 km, at a speed of 50 km/h. What is his average speed for the entire journey from Gurugram to Ajmer?
Show answer & explanation
Correct answer: A
Explanation
Given:
Gurugram → Jaipur Distance = 240 km, Speed = 60 km/h
Rest time = 1 hour
Jaipur → Ajmer Distance = 130 km, Speed = 50 km/h
Time for the first part = 240 / 60 = 4 hours
Time for the second part = 130 / 50 = 2.6 hours
Total distance = 240 + 130 = 370 km
Total time = 4 + 1 + 2.6 = 7.6 hours
Average speed = 370 / 7.6 = 48.68 km/h