The correct answer is D
A car covers a certain distance at the speed of 30 km/h and comes back at the speed of 20 km/h. What is the average speed of the car for the entire jour...
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Two trains starts at the same time from Spain and France towards each other with a speed of 160km/hr and 190 km/hr. When they meet, the faster train cov...
In a 1200 m race, bike A beats bike B by 100 m. bike B beats bike C by 100 m in a 600 m race. If bike A beats bike C by 30 sec in a 720 m race, then wha...
A and B are travelling towards each other with a speed of 10 km/hr and 20 km/hr. They started at same time and A covered 15 km less distance than B befo...
