02-18-2017, 04:04 PM
(02-06-2017, 06:10 PM)pragari Wrote: Please answer this.
There are trucks and cars traveling in a single lane. The size of Truck is 10 m while a size of a car is 5 m. There should be 20 m gaps between each truck and 15 m gap in each car. Cars and Trucks can travel alternately at the speed of 36 km/h. How many vehicles can cross a bridge (nothing particular value given aboutto the bridge) in an hour?
very easy. for two vehicle distance occupied is 10+20+5+15=50m. in one hour distance traveled is 36 km = 36000m
so no of vehicle is = 2*36000/50 =1440. opt A