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- Question
The speed of a car increases by 2 kms after every one hour. If the distance travelling in the first one hour was 35 kms. what was the total distance travelled in 12 hours?
Options- A. 456 kms
- B. 482 kms
- C. 552 kms
- D. 556 kms
- Correct Answer
- 552 kms
ExplanationTotal distance travelled in 12 hours =(35+37+39+.....upto 12 terms)
This is an A.P with first term, a=35, number of terms,
n= 12,d=2.
Required distance = 12/2[2 x 35+{12-1) x 2]
=6(70+23)
= 552 kms. - 1. Find the annual income derived by investing Rs. 6800 in 10% stock at 136.?
Options- A. 250
- B. 1500
- C. 500
- D. 50 Discuss
- 2. Find the annual income derived from Rs. 2500, 8% stock at 106?
Options- A. 100
- B. 200
- C. 150
- D. 250 Discuss
- 3. Find the cost of Rs. 6400, 10% stock at 15 discount?
Options- A. 2000
- B. 5440
- C. 6000
- D. 5140 Discuss
- 4. A 6% stock yields 8%. The market value of the stock is:
Options- A. 70
- B. 76
- C. 75
- D. 80 Discuss
- 5. A man bought 20 shares of Rs. 50 at 5 discount, the rate of dividend being 13 12 . The rate of interest obtained is:
Options- A. 13%
- B. 12
- C. 15%
- D. 16% Discuss
- 6. A person crosses a 600 m long street in 5 minutes, What is his speed in km per hour?
Options- A. 3.6
- B. 7.2
- C. 8.4
- D. 10 Discuss
- 7. A thief is noticed by a policeman from a distance of 200 m. The thief starts running and the policeman chases him. The thief and the policeman run at the rate of 10 km and 11 km per hour respectively. What is the distance between them after 6 minutes?
Options- A. 100 m
- B. 150 m
- C. 190 m
- D. 200 m Discuss
- 8. Two trains A and B start simultaneously in the opposite direction from two points P and Q and arrive at their destinations 16 and 9 hours respectively after their meeting each other. At what speed does the second train B travel if the first train travels at 120 km/h
Options- A. 90 km/h
- B. 160 km/h
- C. 67.5 km/h
- D. None of these Discuss
- 9. Two horses start trotting towards each other, one from A to B and another from B to A. They cross each other after one hour and the first horse reaches B, 5/6 hour before the second horse reaches A. If the distance between A and B is 50 km. what is the speed of the slower horse?
Options- A. 30 km/h
- B. 15 km/h
- C. 25 km/h
- D. 20 km/h Discuss
- 10. How long will a boy take to run round a square field of side 35 meters, If he runs at the rate of 9 km/hr?
Options- A. 50 sec
- B. 52 sec
- C. 54 sec
- D. 56 sec Discuss
Time and Distance problems
Search Results
Correct Answer: 500
Explanation:
By investing Rs. 136, income obtained = Rs. 10.
By investing Rs. 6800, income obtained = = Rs. 500.
Correct Answer: 200
Explanation:
Income from Rs. 100 stock = Rs. 8.
Income from Rs. 2500 stock = = Rs. 200.
Correct Answer: 5440
Explanation:
Cost of Rs. 100 stock = Rs. (100-15)
Cost of Rs. 6400 stock = = Rs. 5440.
Correct Answer: 75
Explanation:
For an income of Rs. 8, investment = Rs. 100.
For an income of Rs. 6, investment = = Rs. 75.
Market value of Rs. 100 stock = Rs. 75.
Correct Answer: 15%
Explanation:
Investment = Rs. [20 x (50 - 5)] = Rs. 900.
Face value = Rs. (50 x 20) = Rs. 1000.
Dividend =
Interest obtained = % = 15%
Correct Answer: 7.2
Explanation:
Speed = = 2 m/sec = 2 x (18/5) km/hr = 7.2 km/hr
Correct Answer: 100 m
Explanation:
Relative speed of the thief and policeman = (11 ? 10) km/hr = 1 km/hr
Distance covered in 6 minutes = (1/60) x 6 km = 1/10 km = 100 m
Therefore, Distance between the thief and policeman = (200 ? 100) m = 100 m.
Correct Answer: 160 km/h
Explanation:
Correct Answer: 20 km/h
Explanation:
If the speed of the faster horse be and that of slower horse be then
and
Now, you can go through options.
The speed of slower horse is 20km/h
Since, 20+30=50
and
Correct Answer: 56 sec
Explanation:
Speed = 9 km/hr = 9 x (5/18) m/sec = 5/2 m/sec
Distance = (35 x 4) m = 140 m.
Time taken = 140 x (2/5) sec= 56 sec
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