TNPSC Group 2 2012 Preliminary Examination
Aptitude Questions 1 to 8
1.
Find the remainder when \(2^{30}\) is divided by 5
A.
2
B.
3
C.
1
D.
4
Answer:
D.
4
2.
A six digit number is formed by repeating a three digit number. Example 341341 etc. Any number of this form is always divisible by
A.
1100
B.
1011
C.
1001
D.
1010
Answer:
C.
1001
3.
Item: Food Clothing Education House rent Others
Expenditure: 300 75 40 75 110
When we represent the data on percentage diagram, the percentage of expenditure on clothing is
Expenditure: 300 75 40 75 110
When we represent the data on percentage diagram, the percentage of expenditure on clothing is
A.
18.33%
B.
6.66%
C.
12.5%
D.
50%
Answer:
C.
12.5%
4.
If BHASHA is coded as 154754, BRAIN is coded as 13408, AHINSA will be coded as
A.
458074
B.
405847
C.
450847
D.
450874
Answer:
D.
450874
5.
The sum of odd numbers from 1 to 31 is
A.
496
B.
256
C.
240
D.
288
Answer:
B.
256
6.
What is the value of X in Fig. II?
A.
4
B.
16
C.
32
D.
2
Answer:
B.
16
7.
For a set of 500 observations variance is found to be 125. If 25 is added to each observation and 55 is subtracted then the new variance is
A.
95
B.
150
C.
180
D.
125
Answer:
D.
125
8.
Two students A and B scored the same average marks in 10 tests and the standard deviation of marks are 2.5 and 3 respectively for A and B. If the consistency of performance is the criterion for awarding prize, then
A.
B should get the prize
B.
A should get the prize
C.
Both A and B should share the prize equally
D.
Prize winner cannot be decided. Since average mark is not given
Answer:
B.
A should get the prize