Time and Distance with Explanation
Q15. Mohan travels from A to B at a rate of 40 km/hr and returns by increasing his speed by 50%. What is the average speed for both the trips?
| A. 45 km/hr | B. 48 km/hr |
| C. 50 km/hr | D. 30 km/hr |
Average speed = 
Q16. The speed of a bike increase by 2 km after every 1 hour. If the distance travel in the first hour was 35 km, find the total distance traveled in 12 hours?
| A. 500 km | B. 525 km |
| C. 550 km | D. 552 km |
= 6 (70 + 22) = 552 km.
