Time and Distance : 10 Questions Repeated in the Exams

time and work

Ques 1.

A cyclist covers a certain journey at 50 km/hour and returns at a speed of 60 km/hour. Find his average speed.
Ans 1.

Ques 2.

A train during its course of journey from station A to station B,travels for 2 hours at 30 km.hour, for 3 hours at 40 km/hour and for 5 hour at 50 km/hour, Find its average speed.
Ans 2.

Ques 3.

Two trains 121 metres long and 99 metres long are running in opposite direction with speeds of 40km/hour and 32 km/hour respectively . In what time will they completely clear each other vfrom the moment they meet ?
Ans 3.

Ques 4.

Two trains are running at 40 km/hour and 20 km/hour respectively in the same direction . The faster train completely passes a man siting in slower train in 5 seconds. Find the length of faster train.
Ans 4.

Ques 5.

Without stoppages, a train travels a certain distance with an average speed of 90 km/hour, and with stoppages it cover the same distance with an average speed of 60 km/hour. Find the stoppage time per hour of the train.
Ans 5.

Ques 6.

A person covers a certain distance on a train. If the train moved 6 km/hour faster, it would take 40 minutes less. If it moved 3 km/hour slower , it would take 30 minutes more .Find the distance.
Ans 6.

Ques 7.

Ashok left mathura at 5 a.m. An hour and a half later Brijesh left Mathura, his speed bring 5 kmph higher than that of Ashok. At 9:30 p.m. on the same day the distance between Ashok and Brijesh was 21 km.What is the speed of Ashok in kmph?
(a) 80 or 20
(b) 75 or 25
(c) 70 or 30
(d) 64 or 36
Ans 7. 64 or 36
Hint:  Ashok travles for ( 12-5) + 9:30 hours till 9:30 p.m. Brijesh travels for (12-6:30) + 9:30 p.m. 
There are two possibilities:
Ashok could be  leading Brijesh or Brijesh could be leading Ashok.

Ques 8.

Walking at 5/4th of his usual speed, Mr Subramaniam his office 10 minute early .Find hid usual reaching time.
(a) 20 min.
(b) 12 1/2 min.
(c) 40 min.
(d) 50 min.
Ans 8. 50 min.

Ques 9.

Sujit runs at 6 km/hour and Rana at 8 km/hour .Rana catches Sujit in 9 minutes.What was the distance between sujit and Rana, when Rana started?
(a) 223 metres
(b) 153 metres
(c) 300 metres
(d) 350 metres.
Ans 9. 300 metres

Ques 10.

A railway passenger counts the telegraph posts in the railway track as he passes them. if they are 40 metres apart and the train is going at a speed of 24 km/hour how many will he pass per minute?
(a) 15
(b) 10
(c) 13
(d) 16
Ans 10. 10
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