InterviewSolution
Saved Bookmarks
| 1. |
ntA boy runs for 10 mins at a uniform speed of 9 km/h. At what speed should he run for the next 20 mins so that the average speed comes to 12 km/h?n |
| Answer» ntA boy runs for 10 mins at a uniform speed of 9 km/h. At what speed should he run for the next 20 mins so that the average speed comes to 12 km/h?n | |