Practicing Success
Two trains - A and B- having the lengths 195 m and 165 m, respectively, are running in the same direction on parallel lines. If the speed of A and B be 77 km/h and 85 km/h, respectively, what will be the time (in seconds) taken by them to cross each other? |
162 164 160 166 |
162 |
Total distance = 195 + 165 = 360m Relative speed = 85 - 77 = 8 km/h 8km/h = \(\frac{20}{9}\) m/sec Time = \(\frac{Distance }{Speed }\) = \(\frac{360 × 9 }{20 }\) = 162 sec |