InterviewSolution
Saved Bookmarks
| 1. |
A train travels 180 km at a uniform speed. If the speed had been 9 km/hour more, it would have taken 1 hour less for the same journey. Find the speed of the train. |
|
Answer» Correct Answer - 36 km/hr Let the speed be x km/hr. Then, `(180)/(x)-(180)/((x+9))=1` `impliesx^(2)+9x-1620=0impliesx^(2)+45x-36x-1620=0.` |
|