Speed Time And Distance(Quantitative Aptitude ) Questions and answers for exam Preparation

Quantitative Aptitude

SPEED TIME AND DISTANCE MCQs

Time And Distance, Time & Distance, Speed Time & Distance

Total Questions : 1223 | Page 35 of 123 pages

Question 341. A person travels three equal distance at a speed of x km/hr, y km/hr and z km/hr respectively. What is the average speed for the whole journey ?

$$\frac{{xyz}}{{3\left( {xy + yz + zx} \right)}}$$ km/hr
$$\frac{{xyz}}{{\left( {xy + yz + zx} \right)}}$$ km/hr
$$\frac{{\left( {xy + yz + zx} \right)}}{{xyz}}$$ km/hr
$$\frac{{3xyz}}{{\left( {xy + yz + zx} \right)}}$$ km/hr

Discuss Question

Answer: Option D. -> $$\frac{{3xyz}}{{\left( {xy + yz + zx} \right)}}$$ km/hr

Question 342. A car takes 15 minutes less to cover a distance of 75 km, if it increases its speed by 10 km/hr from its usual speed. How much time would it take to cover a distance of 300 km using this speed ?

5 hrs
$$5\frac{1}{2}$$ hrs
6 hrs
$$6\frac{1}{2}$$ hrs

Discuss Question

Answer: Option A. -> 5 hrs

Question 343. A thief running at 8 km/hr is chased by a policeman whose speed is 10 km/hr. If the thief is 100 metres ahead of the policeman, then the time required for the policeman to catch the thief will be :

2 minutes
3 minutes
6 minutes
10 minutes

Discuss Question

Answer: Option B. -> 3 minutes

Question 344. Two planes move along a circle of circumference 1.2 kms with constant speeds. When they move in different directions, they meet every 15 seconds and when they move in the same direction one plane overtakes the other every 60 seconds. The speed of the slower plane is :

0.02 km/sec
0.03 km/sec
0.04 km/sec
0.05 km/sec

Discuss Question

Answer: Option B. -> 0.03 km/sec

Question 345. A student goes to school at the rate of $$2\frac{1}{2}$$ km/hr and reaches 6 min late. If he travels at the speed of 3 km/hr he is 10 min early. What is the distance to the school ?

4 km
$$3\frac{1}{4}$$ km
1 km
$$3\frac{1}{2}$$ km

Discuss Question

Answer: Option A. -> 4 km

Question 346. A man can row 15 km/h in still water and he finds that it takes him twice as much time to row up than as to row down the same distance in the river. The speed of current (in km/h) :

6 km/h
6.5 km/h
4.5 km/h
5 km/h

Discuss Question

Answer: Option D. -> 5 km/h

Question 347. A boat covers 48 km upstream and 72 km downstream in 12 hours, while it covers 72 km upstream and 48 km downstream in 13 hours The speed of stream is :

2 kmph
2.2 kmph
2.5 kmph
4 kmph

Discuss Question

Answer: Option A. -> 2 kmph

Question 348. A motor boat takes 2 hours to travel a distance of 9 km downstream and it takes 6 hours to travel the same distance against the current. The speed of the boat in still water and that of the current (in km/h) respectively are:

6, 5 km/h
3, 1.5 km/h
8, 5 km/h
9, 3 km/h

Discuss Question

Answer: Option B. -> 3, 1.5 km/h

Question 349. A train met with an accident 120 km from station A. It completed the remaining journey at $$\frac{5}{6}$$ of its previous speed and reached 2 hour late at station B. Had the accident taken place 300 km further, it would have been only 1 hour late. What is the speed of the train?

100 km/h
12 km/h
60 km/h
50 km/h

Discuss Question

Answer: Option C. -> 60 km/h

Question 350. A runs $$\frac{7}{4}$$ times as fast as B. If A gives B a start of 300 m, how far must the winning post be if both A and B have to end the race at same time?