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The first third of a 75 km trip took twice as long as the rest of the trip. If the first third took 'h' hours, then the average speed for the whole trip was:

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Important Questions on Time, Speed and Distance

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Quantitative Aptitude for Competitive Examinations>Chapter 20 - Time, Speed and Distance>Practice Problems Level 2>Q 10
Two buses, one moving towards north and the other towards east, leave the same place at the same time. The speed of one of them is greater than that of the other by 5 km/hr. At the end of 2 hours, they are at a distance of 50 km from each other. The speed of the bus going slower is :
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Quantitative Aptitude for Competitive Examinations>Chapter 20 - Time, Speed and Distance>Practice Problems Level 2>Q 3
The average speed of a train is 20 per cent less on the return journey than on the onward journey. The train halts for half an hour at the destination station before starting on the return journey. If the total time taken for the to and fro journey is 23 hours, covering a distance of 1,000 km, the speed of the train on the return journey is:
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Quantitative Aptitude for Competitive Examinations>Chapter 20 - Time, Speed and Distance>Practice Problems Level 2>Q 4
Xavier travels from Kisanpet to Mohanpet by train at 32 km/h. But before reaching Mohanpet, he returns from Anand pet to Kisanpet by car at 72 km/h. If the time for the whole journey is 13 hours, find the distance of Anandpet from Kisanpet.
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Quantitative Aptitude for Competitive Examinations>Chapter 20 - Time, Speed and Distance>Practice Problems Level 2>Q 5
To travel 600 km, train X takes 8 hours more than train Y. If, however, the speed. of train X is doubled, it takes 2 hours less than train Y. The speed of train Y (in km/h) is:
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Quantitative Aptitude for Competitive Examinations>Chapter 20 - Time, Speed and Distance>Practice Problems Level 2>Q 8
Cyrus and Lloyd start from their house at 9 a.m. with speed of 30 km/h and 60 km/h. There is a T junction on their path. Cyrus turns left at the T junction at 11 a.m. Lloyd reaches the T junction earlier and turns right. Both of them continue travelling till 1.00 p.m. What is the distance between Cyrus and Lloyd at 1.00 p.m.?
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Quantitative Aptitude for Competitive Examinations>Chapter 20 - Time, Speed and Distance>Practice Problems Level 2>Q 23
Shan starts 3 minutes after Bonny from the same point, for a place at a distance of 412 miles. Bonny on reaching her destination immediately returns and after walking a mile meets Shan. If Shan's speed is a mile in 18 minutes, what is Bonny's speed in miles per minute?
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Quantitative Aptitude for Competitive Examinations>Chapter 20 - Time, Speed and Distance>Practice Problems Level 2>Q 26
The distance from P to Q is 25 km; 6 km of which are uphills; 12 km downhill and the rest 7 km in level ground. The time in which a man would go from P to Q and back again, supposing his speed uphill is 2 km, downhill 3 km and on the level ground 312 km/h, is:
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Quantitative Aptitude for Competitive Examinations>Chapter 20 - Time, Speed and Distance>Practice Problems Level 2>Q 27
A hare pursued by a greyhound is 50 of her own leaps ahead of him. While the hare takes 4 leaps, the greyhound takes 3 leaps. In one leap, the hare goes 134 m and the greyhound 234 m. In how many leaps will the greyhound overtake the hare?