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Relative speed = 40 + 35 = 75 km/hrs Time taken to meet for the first time = length of the track/ relative speed => 750 / (40 + 35) => (750 x 18)/(75 x 5) = 36 sec
'A' can do some work alone in 16 days. 'A'and 'B' work together for 8 days after which'A' leaves and 'B' finishes the remaining work alone in 12 days. H...
A car running with a speed of 60 km/hr takes 16 hours to go from 'A' to 'B'. If on the way back from 'B' to 'A', the car takes 20% less time than it tak...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 23 km/hr and 24 km/hr, respectively. If the di...
A motor-cycle covers 125 km with a speed of 60 km/hr. find the speed of the motor-cycle for the next 125 km journey so that the average speed of the who...
Tarun takes 1hr 30 min in walking to a certain place and riding back. He would have gained 40 min by riding both ways. How long would he take to walk bo...
Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 45 m/s. Train Q starts from Dehradunto Lucknowat 1:35 pm with an average sp...
If a person walks 20% more than of his usual speed, reaches his distance 90 minutes before. If the destination is 459 km away, then the usual speed of a...
A man running with the speed of 57 km/hr covers a certain distance in ‘x’ hours. If the same distance can be travelled with a speed of 60 km/h in (x...
‘E’ and ‘F’ started moving towards each other at the same time with a speed of 30 km/hr and 25 km/hr, respectively. If the distance covered by �...
