Simplification Problems related aptitude question for TNPSC Exams

Problems based on the simplification for preparing TNPSC exams. Make use of these solved examples to prepare for exams.

1. In an examination, a student scores 4 marks for every correct answer and loses 1 mark for every wrong answer. If he attempts all 80 questions and secures 120 marks, How many questions does he answer correctly?
A. 30
B. 60
C. 50
D. 40

2. There are two buildings P and Q. If 15 persons are sent from P to Q, then the number of persons in each building is the same. If 20 persons are sent from Q to P, then the number of persons in P is double the number of persons in Q. How many persons are there in building P?
A. 80
B. 140
C. 120
D. 90

3. John gets on the elevator at the 14th floor of a building and rides up at the rate of 84 floors per minute. At the same time, Vinod gets on an elevator at the 58th floor of the same building and rides down at the rate of 92 floors per minute. If they continue travelling at these rates, then at which floor will their paths cross?
A. 38
B. 36
C. 32
D. 35

4. An organization decided to raise Rs. 6 lakh by collecting equal contribution from each of its employees. If each of them had contributed Rs. 60 extra, the contribution would have been Rs. 6.24 lakh. How many employees are there in that organization?
A. 400
B. 300
C. 200
D. 100

5. In a garden, there are 10 rows and 12 columns of mango trees. The distance between the two trees is 2 metres and a distance of one metre is left from all sides of the boundary of the garden. What is the length of the garden?
A. 30 m
B. 28 m
C. 26 m
D. 24 m

6. If a - b = 6 and a2 + b2 = 116, then what is the value of ab?
A. 20
B. 40
C. 60
D. 80

7. 20 + 20 × 2 = ?
A. 40
B. 50
C. 60
D. 70

8. A fires 5 shots to B's 3 but A kills only once in 3 shots while B kills once in 2 shots. When B has missed 27 times, A has killed:
A. 30 birds
B. 22 birds
C. 18 birds
D. 38 birds

9. Free notebooks were distributed equally among children of a class. The number of notebooks each child got was one-eighth of the number of children. Had the number of children been half, each child would have got 16 notebooks. Total how many notebooks were distributed?
A. 602
B. 528
C. 423
D. 512

10. A boy was asked to multiply a number by 22. He instead multiplied the number by 44 and got the answer 308 more than the correct answer. What was the number to be multiplied?
A. 16
B. 10
C. 14
D. 12

Answers :
1. D    2. C    3. D    4. A    5. D
6. B    7. C    8. A    9. D    10. C

Read More

Aptitude Question for Competitive Exams - Set 1

Aptitude questions for competitive exams, Tnpsc exams. Train related aptitude questions for Interview and aptitude tests with answers.

1. How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?
A.    25
B.    30
C.    40
D.    45
      
2. A train 108 m long moving at a speed of 50 km/hr crosses a train 112 m long coming from opposite direction in 6 seconds. The speed of the second train is:
A.     48 km/hr
B.     54 km/hr
C.     66 km/hr
D.     82 km/hr

3. A train 360 m long is running at a speed of 45 km/hr. In what time will it pass a bridge 140 m long?
A.     40 sec
B.     42 sec
C.     45 sec
D.     48 sec

4. A train overtakes two persons who are walking in the same direction in which the train is going, at the rate of 2 kmph and 4 kmph and passes them completely in 9 and 10 seconds respectively. The length of the train is:
A.     45 m
B.     50 m
C.     54 m
D.     72 m

5. Two, trains, one from Howrah to Patna and the other from Patna to Howrah, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is:
A.     2 : 3
B.     4 : 3
C.     6 : 7
D.     9 : 16
  
6. The length of the bridge, which a train 130 metres long and travelling at 45 km/hr can cross in 30 seconds, is:
A.     200 m
B.     225 m
C.     245 m
D.     250 m
  
7. A train travelling at a speed of 75 mph enters a tunnel 31/2 miles long. The train is 1/4 mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?
A.     2.5 min
B.     3 min
C.     3.2 min
D.     3.5 min

8. A train moves past a telegraph post and a bridge 264 m long in 8 seconds and 20 seconds respectively. What is the speed of the train?
A.     69.5 km/hr
B.     70 km/hr
C.     79 km/hr
D.     79.2 km/hr
  
9. Two stations A and B are 110 km apart on a straight line. One train starts from A at 7 a.m. and travels towards B at 20 kmph. Another train starts from B at 8 a.m. and travels towards A at a speed of 25 kmph. At what time will they meet?
A.     9 a.m.
B.     10 a.m.
C.     10.30 a.m.
D.     11 a.m.
  
10. A train travelling at 48 kmph completely crosses another train having half its length and travelling in opposite direction at 42 kmph, in 12 seconds. It also passes a railway platform in 45 seconds. The length of the platform is
A.     400 m
B.     450 m
C.     560 m
D.     600 m


Answers:
1. B        2. D       3. A        4. B        5. B  
6. C        7. B       8. D        9. B        10. A

Read More