Question : Direction: Ram and Ravi start together from a point in opposite direction in scooters. Ram's speed is 21 km/h and Ravi's speed is 15 km/h. What will be the distance between them after 20 minutes?
 

Option 1: 25 km

Option 2: 16 km

Option 3: 12 km

 

Option 4: 45 km

Question : Direction: A train runs for 2 hrs at the speed of 40 km/h and then runs for 4½ hrs at the speed of 6 km/h and then runs for 3½ hrs, at the speed of 70 km/h. Find the average speed of the train.

Question : From point H, at 6:30 pm, a train starts moving towards point K at the speed of 90 km/hr. Another train starts moving from point K at 7:30 p.m. towards point H at the speed of 72 km/hr. Both trains meet at 11:30 p.m. at point J. What is the ratio of the distance HJ and

Question : Direction: Ram cycled 10 km towards south from his home, turned right and cycled 6 km, then turned right and cycled 10 km and finally turned left and cycled 15 km. How many kilometres will he have cycled to get straight home?

Question : A thief steals an item and escapes, running at a speed of 15 km/h. A policeman arrives at the spot of the crime after 4 minutes and immediately starts chasing the thief. 16 minutes after the policeman started to chase the thief, there was still a gap of 200 m between the two.

Question : Rubi goes to a multiplex at a speed of 3 km/h to see a movie and reaches 5 minutes late. If she travels at the speed of 4 km/h she reaches 5 minutes early, then the distance of the multiplex from her starting point is: