InterviewSolution
Saved Bookmarks
| 1. |
Directions: Anil started from city X at 10:00 AM and travelled towards city Y. After one hour, Sunil started from Y and travelled towards X. The total time taken by Anil and Sunil for their journey are (k + 2) hours and k hours respectively. They met each other at 7:00 PM. The speed of Sunil is 7 km/h more than that of Anil.Find the total time taken by Anil for his journey?1). 16 hours2). 14 hours3). 20 hours4). 18 hours |
|
Answer» LET the distance between the two cities be ‘d’ km. The distance TRAVELLED by ANIL for ONE hour = d/(k + 2) Remaining distance = d[1 – 1/(k + 2)] = d[(k + 1)/(k + 2)] km Given, ⇒ [(k + 1)/(k + 2)]/[d/(k + 2) + d/k] = 8 ⇒ k/2 = 8 ⇒ k = 16 ∴ Required number of hours taken by Anil = 16 + 2 = 18 hours |
|