Saved Bookmarks
| 1. |
-) A car travels at a speed of 50 km/hr for 30minutes, at 30 km/hr for next 15 minutesand then 70 km/hr for next 45 minutes.What is the average speed of the car? |
|
Answer» T = 30+15+75 = 120 D = 50+30+70 = 150 Answer = 150/120 = 5/4
t |
|