1)

Two trains start at the same time from two stations and proceed towards each other at speeds of 90 km/h and 70 km/h, respectively. When they meet, it is found that one train has travelled 140 km more than the other. What is the distance (in km) between the two stations?

SSC CHSL 2021

A)

1100

B)

1120

C)

980

D)

1200

2)

Two cars X and Y start running towards each other from two places 216 km apart. The ratio of the speeds of X and Y is 5 ∶ 7 and the speed of X is 60 km/h. After how many minutes will X and Y meet each other?

SSC CHSL 2021

A)

75

B)

90

C)

80

D)

72

3)

Trains A and B of lengths 329 m and 296 m, respectively, are running in opposite directions on parallel tracks, at the speeds of 85 km/h and 65 km/h, respectively. In what time (in seconds) will they cross each other?

SSC CHSL 2021

A)

15

B)

15.5

C)

14

D)

16.5

4)

A boat can travel with a speed of 19 km/h in still water. If the speed of the stream is 3 km/h, then what will be the total time (in hours) taken by the boat to go 88 km downstream and 24 km upstream?

SSC CHSL 2021

A)

5

B)

4.5

C)

5.5

D)

4

5)

A train starts running at a uniform speed of 60 km/h from station P towards station Q. At the same time another train starts running from station Q towards station P. If the distance between the stations P and Q is 275 km and the trains meet in two and a half hours, then what is the speed of the train running towards station P in km/h?

SSC CHSL 2021

A)

44

B)

40

C)

48

D)

50

6)

The speed of a train is 78 km/h. It crosses a tunnel in 45 s and overtakes a person walking at a speed of 6 km/h, in the same direction, in 15 s. The length (in m) of the tunnel is:

SSC CHSL 2021

A)

650

B)

780

C)

675

D)

975

7)

Ravi can row a boat in still water at the speed of 14 km/h. If a river is flowing at the sped of 2 km/h and Ravi takes 3 hours to cover a certain distance upstream, then how much time will he take to cover the same distance downstream?

SSC CHSL 2021

A)

2 h 20 m

B)

2 h

C)

2 h 15 m

D)

2 h 30 m

8)

Two trains X and Y of lengths 450 meters and 550 meters, respectively, are running in the same direction on parallel tracks. If the speeds of X and Y are 58 km/h and 86 km/h, respectively, then what will be the time taken by then to cross each other?
(correct to one decimal place)

SSC CHSL 2021

A)

128.6 seconds

B)

126.6 seconds

C)

124.6 seconds

D)

122.6 seconds

9)

Sunil can row a boat 20 km upstream in 1 hour 15 minutes. If the speed of the current of the river is 2 km/h, then how much time will he take to row the boat 30 km downstream?

SSC CHSL 2021

A)

1 h 10 m

B)

1 h 30  m

C)

1 h 20 m

D)

1 h 45 m

10)

A boat can go 15 km downstream and 8 km upstream in 2 h. It can go 20 km downstream and 12 km upstream in 2 h 50 min. What is the speed (in km/h ) of the boat while going downstream?

SSC CHSL 2021

A)

15

B)

18

C)

20

D)

16