TNPSC Group I Exam-Previous Year Question Paper-Subject wise Analysed Questions-Mental Ability-Part 1
A
P
U Z
1
2 9
6
% simple interest per annum for a period of 1 year and 6 months?
17. If
he area of an equilateral triangle is 4 √3 m2, then is perimeter is
21. Distribution of students in seven
institutions M,N,P,Q,R,S and T is given in the Pie chart shown below. Find the
total number of students in the institutions M and S, if the total number of
students in all the seven institutions is 27300.
TNPSC
GROUP – I 2013
Mental
Ability
1. The average marks in English obtained
by 300 students is 45:The average marks of first 100 and last 100 students are
70 are 20 respectively. The average
marks of the remaining 100 students is
A) 70 B) 20
C) 45 D) 50
Answer : (C)
2. Struges rule for determining the number
of classes (K) in a frequency
table is
A) K = 1 +
3.32 log10 N
B) K = 1 - 3.32 log10 N
C) K = 1 + 2.32 log10 N
D) K = 1 + 3.32 loge N
Answer : (A)
3. Consider the following five processes
with the length of the CPU burst time given in milliseconds together with their
arrival time and priority.
process Arrival time Burst
time Priority
P1 0 10 4
P2 0 3 1
P1 0 10 4
P4 3 16 3
P5 7 2 5
In priority scheduling the average
turnaround time will be
A) 20.6 ms B) 18.6 ms
C) 21.6 ms D) 22.5 ms
Ans: (A)
4. What should come in the place of
question mark (?)
25 52
19 13 49
32 16 ?
17
18 14 40
A) 63 B) 73
C) 53 D) 83
Answer : (A)
5. Horizontal bar diagram is used for
A) Qualitative
data
B) Data varying over time
C) Data
varying over space
D) (A) or (C)
Answer
: (D)
6. Classification is the process of
arranging data in
A) Different columns
B) Different rows
C) Grouping of related facts in different
classes
D) None
of these
Answer : (C)
7. Indentify the mission letter:
A
F K
P
U Z E J
O ?
A) R B) S
C) T D) W
Answer : (C)
8. What is the value of A if each letter
represents a different digit?
(A3B) (B) = 217B
A) 3 B) 4
C) 5 D) 7
Answer
: (B)
9. A perfect dice is tossed twice. Find
the probability of getting a total of 9.
1
A) 9 B) 9
2 9
C) 9 D) 2
Answer : (B)
10. Find out wrong number in the following
sequence:
22, 23, 66, 99, 121, 279, 594
A) 33 B) 121
C) 279 D) 594
Answer : (C)
11. Identify the missing:
8 12 9
10 7
20
3 10
?
A) 13 B) 14
C) 4 D) 5
Answer : (C)
12. The sum of two numbers is 20. Their
product in 96, then their H.C.F is
A) 2 B) 4
C) 8 D) 10
Answer : (B)
13. If TAMIL is VCMKN and HINDI is JKNFK then
ODISA is
A) RTGFC B) QGIUC
C) SFJUA D) QFIUC
Answer : (D)
14. Find the smallest number exactly
divisible by 12, 15, 20 and 27
A) 540 B) 570
C) 240 D) 270
Answer : (A)
15. Nest term in the sequence 7, 11, 9, 11,
17, 14, 15, 23, 19, …. is
A) 19, 25, 22 B) 19, 31, 20
C) 19, 29, 24 D) 19, 27, 23
Answer : (C)
16. What amount should be repaid to clear a
loan of Rs.6,000 borrowed at
2
6
% simple interest per annum for a period of 1 year and 6 months?
3
A) 6,800 B) 6,600
C) 6,200 D) 6,400
Answer : (B)
17. If
he area of an equilateral triangle is 4 √3 m2, then is perimeter is
A) 16 m B) 12 m
C) 18 m D) 9 m
Answer : (B)
18. The radius of sphere B is one fourth of radius of sphere A. Then the
ratio of volume between A and B is
A) 1 :16 B) 16 : 1
C) 1 : 64 D) 64 : 1
Answer : (D)
19. If the volume and surface area if a
sphere are numerically the same, then its radius is
A) 3 units B) 2
units
C) 1 units D) 4 units
Answer : (A)
20. A man can do a piece of work in 5 day,
but with his son he can do it in 3 days. In what time can the son do it alone?
A) 6 ½ days B) 7 days
C) 7 ½ days D) 8 days
Answer : (C)
21. Distribution of students in seven
institutions M,N,P,Q,R,S and T is given in the Pie chart shown below. Find the
total number of students in the institutions M and S, if the total number of
students in all the seven institutions is 27300.
P N
12% 17%
Q13%
M
17%
18% 14%
R
14% T
S
A) 8463 B) 7516
C) 9127 D) 9404
Answer : (D)
22. The average of a boy’s marks in 7
subjects is 75. His average in 6 subjects other than science is 72. How many
marks did he get in Science?
A) 72 B) 93
C) 90 D) 94
Answer : (B)
24. Age in years : 10-20 20-30
30-40 40-50 50-60
No. of persons : 8 24
40 22 6
The relative frequency of
persons belonging to the class interval
30 - 4 is
A) 0.60 B) 0.40
C) 40 D) 60
Answer : (B)
25. Sector : Agriculture
Manufacturing Services
Revenue collections : 22% 40% 38%
When represented in a pie
diagram. the angle that represents manufacturing is
A) 72° B) 96°
C) 144° D) 216°
Answer : (C)
No comments:
Post a Comment