1. A train passes two bridges of lengths 800 m and 400 m in 100 seconds and 60 seconds respectively. The length of the train is (SSC CGL)

(a) 80 m

(b) 90 m

(c) 200 m

(d) 150 m

2. A motor boat, whose speed is 15km/h in still water goes 30 km downstream and comes back in a total time of 4 h and 30 minutes. The speed of the stream is (CDS)

(a) 4km/h

(b) 5km/h

(c) 6km/h

(d) 10km/h

(a) 80 m

(b) 90 m

(c) 200 m

(d) 150 m

2. A motor boat, whose speed is 15km/h in still water goes 30 km downstream and comes back in a total time of 4 h and 30 minutes. The speed of the stream is (CDS)

(a) 4km/h

(b) 5km/h

(c) 6km/h

(d) 10km/h

3. A train, 150 m long, takes 30 seconds to cross a bridge 500 m long. How much time will the train take to cross a platform 370 m long ? (SSC CGL)

(a) 36 seconds

(b) 30 seconds

(c) 24 seconds

(d) 18 seconds

Ram and Shyam run a race between points A and B, 5 km apart. Ram starts at 9 am at a speed of 5km/h, reaches B and returns to A at the same speed. Shyam starts at 9:45 am from A at a speed to 10km/h, reaches B and comes back to A at the same speed. (CAT)

4. At what time do Ram and Shyam first meet each other ?

(a) 10 am

(b) 10:10 am

(c) 10:20 am

(d) 10:30 am

5. At what time does Shyam overtake Ram ?

(a) 10:20 am

(b) 10:30 am

(c) 10:40 am

(d) 10:50 am

6. A boat running downstream covers a distance of 20 km in 2 hours while it covers the same distance upstream in 5 hours. Then speed of boat in still water is (SSC)

(a) 7km/h

(b) 8km/h

(c) 9km/h

(d) 10km/h

7. A boy is late by 9 minutes if he walks to school at a speed of 4km/h. If he walks at a speed to 5km/h, he arrives 9 minutes early. The distance to his school is (SSC)

(a) 9 km

(b) 5 km

(c) 4 km

(d) 6 km

8. In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200km/h and the time of flight increased by 30 minutes. The duration of the flight is (CDS)

(a) 1 hour

(b) 2 hour

(c) 3 hour

(d) 4 hour

9. A man rows downstream 32 km and 14 km upstream and he takes 6 hours to cover each distance. What is the speed of the current ? (CDS)

(a) 0.5 km/h

(b) 1 km/h

(c) 1.5 km/h

(d) 2 km/h

10. A father and his son start at a point

(a) 90 km

(b) 72 km

(c) 36 km

(d) None of these

(a) 36 seconds

(b) 30 seconds

(c) 24 seconds

(d) 18 seconds

*Directions (4-5):*Answer the questions based on the following information.Ram and Shyam run a race between points A and B, 5 km apart. Ram starts at 9 am at a speed of 5km/h, reaches B and returns to A at the same speed. Shyam starts at 9:45 am from A at a speed to 10km/h, reaches B and comes back to A at the same speed. (CAT)

4. At what time do Ram and Shyam first meet each other ?

(a) 10 am

(b) 10:10 am

(c) 10:20 am

(d) 10:30 am

5. At what time does Shyam overtake Ram ?

(a) 10:20 am

(b) 10:30 am

(c) 10:40 am

(d) 10:50 am

6. A boat running downstream covers a distance of 20 km in 2 hours while it covers the same distance upstream in 5 hours. Then speed of boat in still water is (SSC)

(a) 7km/h

(b) 8km/h

(c) 9km/h

(d) 10km/h

7. A boy is late by 9 minutes if he walks to school at a speed of 4km/h. If he walks at a speed to 5km/h, he arrives 9 minutes early. The distance to his school is (SSC)

(a) 9 km

(b) 5 km

(c) 4 km

(d) 6 km

8. In a flight of 600 km, an aircraft was slowed down due to bad weather. Its average speed for the trip was reduced by 200km/h and the time of flight increased by 30 minutes. The duration of the flight is (CDS)

(a) 1 hour

(b) 2 hour

(c) 3 hour

(d) 4 hour

9. A man rows downstream 32 km and 14 km upstream and he takes 6 hours to cover each distance. What is the speed of the current ? (CDS)

(a) 0.5 km/h

(b) 1 km/h

(c) 1.5 km/h

(d) 2 km/h

10. A father and his son start at a point

*A*with speeds of 12 km/h and 18 km/h respectively and reach another point*B*. If his son starts 60 minutes after his father at*A*and reaches*B*, 60 minutes before his father, then what is the distance between*A*and*B*? (CDS) (a) 90 km

(b) 72 km

(c) 36 km

(d) None of these

11. In covering a distance of 30 km, Abhay takes 2 hours more than Sameer. If Abhay doubles his speed, then he would take 1 hour less than Sameer. Abhay's speed is (MAT)

(a) 5 km/h

(b) 6 km/h

(c) 6.25 km/h

(d) 7.5 km/h

12. A train when moves at an average speed of 40 km/h, reaches its destination on time. When its average speed becomes 35 km/h, then it reaches its destination 15 minutes late. Find the length of journey. (Bank PO)

(a) 30 km

(b) 40 km

(b) 70 km

(d) 80 km

13. A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10km/h and 11 km/h respectively. What is the distance between them after six minutes ? (SSC)

(a) 100 m

(b) 150 m

(c) 190 m

(d) 90 m

A thief, after committing the burglary, started fleeing at 12 noon, at a speed of 60 km/h. He was than chased by a policeman X. X started the chase, 15 minutes after the thief had started, at a speed of 65 km/h. (CAT)

14. At what time did X catch the thief ?

(a) 3:30 pm

(b) 3 pm

(c) 3:15 pm

(d) None of these

15. If another policeman had started the same chase along with X, but at a speed of 60 km/h, then how far behind was he when X caught the thief ?

(a) 18.75 km

(b) 15 km

(b) 21 km

(d) 37.5 km

(a) 5 km/h

(b) 6 km/h

(c) 6.25 km/h

(d) 7.5 km/h

12. A train when moves at an average speed of 40 km/h, reaches its destination on time. When its average speed becomes 35 km/h, then it reaches its destination 15 minutes late. Find the length of journey. (Bank PO)

(a) 30 km

(b) 40 km

(b) 70 km

(d) 80 km

13. A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10km/h and 11 km/h respectively. What is the distance between them after six minutes ? (SSC)

(a) 100 m

(b) 150 m

(c) 190 m

(d) 90 m

*Directions (14-15):*Answer the questions based on the following information.A thief, after committing the burglary, started fleeing at 12 noon, at a speed of 60 km/h. He was than chased by a policeman X. X started the chase, 15 minutes after the thief had started, at a speed of 65 km/h. (CAT)

14. At what time did X catch the thief ?

(a) 3:30 pm

(b) 3 pm

(c) 3:15 pm

(d) None of these

15. If another policeman had started the same chase along with X, but at a speed of 60 km/h, then how far behind was he when X caught the thief ?

(a) 18.75 km

(b) 15 km

(b) 21 km

(d) 37.5 km