4

# A man in a train notices that he can count 41 telephone posts in one minute. If they are known to be 50 metres apart, then at what speed is the train travelling?

60 km/hr

100 km/hr

110 km/hr

120 km/hr

D. 120 km/hr

Number of gaps between 41 poles = 40
So total distance between 41 poles = 40*50
= 2000 meter = 2 km
In 1 minute train is moving 2 km/minute.
Speed in hour = 2*60 = 120 km/hour

4

9

10

12

20

4

8 kmph

11 kmph

12 kmph

14 kmph

4

35.55 km/hr

36 km/hr

71.11 km/hr

71 km/hr

4

220 km

224 km

230 km

234 km

4

14 km

15 km

16 km

17 km

4

7:15 am

7:30 am

7: 42 am

7:50 am

4

300 kmph

360 kmph

600 kmph

720 kmph

4

44 km/hour

46 km/hour

48 km/hour

50 km/hour

4

10 am

11 am

12 pm

1 pm

4

83.5 km/hr

84.5 km/hr

86.5 km/hr

87.5 km/hr

4

60 km/hr

100 km/hr

110 km/hr

120 km/hr

4

2 : 3

3 : 2

3 : 4

4 : 3

4

# A car travelling with $\frac{5}{7}$ of its actual speed covers 42 km in 1 hr 40 min 48 sec. Find the actual speed of the car.

$17\frac{6}{7}$ km/hr

25 km/hr

30 km/hr

35 km/hr

4

9 km/hour

10 km/hour

11 km/hour

12 km/hour

4

50 meter

100 meter

110 meter

None of above

4

3 hours

2.4 hours

1.4 hours

1 hour

4

70 km/hr

75 km/hr

84 km/hr

87.5 km/hr

4

# A man covered a certain distance at some speed. Had he moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes more. The distance (in km) is:

$35$

$36\frac{2}{3}$

$37\frac{1}{2}$

$40$

4

3.6

7.2

8.4

10

4

100 kmph

110 kmph

120 kmph

130 kmph

4

70.11 km/hr

71.11 km/hr

72.11 km/hr

73.11 km/hr

4

3 km

4 km

6 km

9 km

4

50 km

56 km

70 km

80 km

4

6 hours 24 mins

6 hours 21 mins

6 hours 18 mins

6 hours 15 mins

4

5 kmph

6 kmph

6.25 kmph

7.5 kmph