21)

Dimple is travelling at a speed of 90 km per hour on a highway, while Sachin is travelling at a speed of 108 km per hour. What is the difference in their speeds, in metres per second?

SSC CHSL 2021

A)

5

B)

6

C)

4

D)

3

22)

The speed of a car is 40% more than that of a bus. A train covers 1020 km in \(8\frac{1}{2}\)hours. How much distance will the car cover in \(1{3\over4}\) hours if the speed of the bus is half the speed of the train?

SSC CHSL 2021

A)

164 km

B)

145 km

C)

147 km

D)

174 km

23)

With a speed of 48 km/h, Raghu is able to complete his journey in 2 hours 28 minutes. If he wants to cover the same distance in 1 hour 36 minutes, then what should be his new speed?

SSC CHSL 2021

A)

64 km/h

B)

66 km/h

C)

72 km/h

D)

74 km/h

24)

A bus covered 360 km in 6 hours. If it travels at one-fourth of its usual speed, then how much more time will it take to cover the same distance?

SSC CHSL 2021

A)

16 hours

B)

12 hours

C)

14 hours

D)

18 hours

25)

A car takes 50 minutes to cover a certain distance at a speed of 54 km/h. If the speed is increased by 25%, then how long will it take to cover three-fourth of the same distance?

SSC CHSL 2021

A)

40 minutes

B)

30 minutes

C)

35 minutes

D)

25 minutes

26)

A travelled from a place P to place Q at an average speed of 36 km/h. He travelled the first 75% of the distance in four-fifth of the time and the rest at a constant speed of x km/h. The value of x is:

SSC Selection Post Matric 2022

A)

50

B)

40

C)

60

D)

45

27)

Anu drives her car for 1 hour at a speed of 60 km/h, for 2 hours at a speed of 55 km/h, and for 3 hours at a speed of 45 km/h. What is the average speed of the car (in km/h)?

SSC Selection Post Matric 2022

A)

48.33

B)

49

C)

\(50 {5 \over 6}\)

D)

52.5

28)

A man is delayed in reaching his workplace by 30 minutes due to bad traffic as he can drive at \(7\over9\) of his usual speed. What is his usual time (in hours and minutes) of travel?

SSC Selection Post Matric 2022

A)

2 hours 10 minutes

B)

2 hours 15 minutes

C)

1 hour 30 minutes

D)

1 hour 45 minutes

29)

A car covers the first 80 km of its journey at a speed of 40 km/h. The driver makes a stop at the tea-stall for 30 minutes and then continues his journey at a speed of 60 km/h for 4 hours. What is his average speed (in km/h, correct to 1 decimal place)?

SSC Selection Post Matric 2022

A)

49.2

B)

53.3

C)

48.5

D)

55.4

30)

P, Q and R participated in a cycle race of 4000 metres. P cycles twice as fast as Q and R cycles half as fast as Q. If R completes the race in 40 minutes, then what is the speed (in km/h) of P?

SSC Selection Post Matric 2022

A)

24

B)

20

C)

18

D)

30