TNPSC Group 2 2022 Preliminary Examination
Aptitude Questions 1 to 25
1.
2 P J @ 8 $ L B 1 V # Q 6 δ G W 9 K C D 3 © • £ 5 F R 7 A Y 4
P @ L is to Y 7 5 in the same way as $ 1 # is to
P @ L is to Y 7 5 in the same way as $ 1 # is to
A.
R £ ©
B.
F £ 3
C.
F • 3
D.
5 • D
Answer:
C.
F • 3
2.
If \(\times\) means \(\div\), \(-\) means \(\times\), \(\div\) means \(+\) and \(+\) means \(-\), what is the value of \((3-15\div19)\times8+6\)
A.
8
B.
4
C.
2
D.
−1
Answer:
C.
2
3.
Which number replaces the question mark for the following numbers?
A.
21
B.
23
C.
25
D.
27
Answer:
B.
23
4.
Find the volume of water tank measured 10 m × 5 m × 1.5 m.
A.
75 litre
B.
750 litre
C.
7500 litre
D.
75000 litre
Answer:
D.
75000 litre
5.
An aluminium sphere of radius 12 cm is melted to make a cylinder of radius 8 cm. Find the height of the cylinder.
A.
24 cm
B.
30 cm
C.
36 cm
D.
40 cm
Answer:
C.
36 cm
6.
Which among the following is the simple interest for the principal of ₹ 1,000 for one year at the rate of 10% interest per annum?
A.
₹ 700
B.
₹ 500
C.
₹ 150
D.
₹ 100
Answer:
D.
₹ 100
7.
If the simple interest at the rate of \(x\)% per annum, for \(x\) years, is ₹ \(x\), then the principal amount is
A.
₹ \(x\)
B.
\(\text{₹ }\left(\dfrac{100}{x}\right)\)
C.
\(\text{₹ }100x\)
D.
\(\text{₹ }\dfrac{100}{x^2}\)
Answer:
D.
\(\text{₹ }\dfrac{100}{x^2}\)
8.
If \(\left(2x+3y\right):\left(3x+5y\right)=18:29\) then \(x:y\) is
A.
4 : 3
B.
3 : 4
C.
2 : 3
D.
3 : 5
Answer:
B.
3 : 4
9.
If \(5:6=x:12\). Then the value of \(x\) is
A.
10
B.
6
C.
12
D.
5
Answer:
A.
10
10.
What is the greatest possible volume of a vessel that can be used to measure exactly the volume of milk in cans (in full capacity) of 80 litres, 100 litres and 120 litres?
A.
20 litres
B.
25 litres
C.
30 litres
D.
40 litres
Answer:
A.
20 litres
11.
Find the HCF of \(a^3-9ax^2,\ (a-3x)^2\).
A.
\(a^2-9x^2\)
B.
\((a-3x)^2\)
C.
\(a^3-9ax^2\)
D.
\((a-3x)\)
Answer:
D.
\((a-3x)\)
12.
Kumar borrowed ₹ 52,000 from a money lender at a particular rate of simple interest. After 4 years, he paid ₹ 79,040 to settle his debt. At what rate of interest he borrowed the money?
A.
12%
B.
13%
C.
15%
D.
11%
Answer:
B.
13%
13.
How many terms of the series \(1^3+2^3+3^3+\ldots\) should be taken to get the sum 1296?
A.
6
B.
7
C.
8
D.
9
Answer:
C.
8
14.
Find the value of \(\sqrt{3\sqrt{3\sqrt{3\cdots}}}\)
A.
\(3^1\)
B.
\(3^2\)
C.
\(3^3\)
D.
\(3^4\)
Answer:
A.
\(3^1\)
15.
The average mark of 25 students was found to be 78.4. Later on, it was found that score of 96 was misread as 69. Find the correct mean of the marks.
A.
77.32
B.
79.48
C.
79.84
D.
97.84
Answer:
B.
79.48
16.
If 5 persons can do 5 jobs in 5 days then how many days will it take for 50 persons to finish 50 jobs?
A.
5
B.
7
C.
9
D.
11
Answer:
A.
5
17.
A reader reads 20 pages of a book in 2 hours in an uniform speed. How much time will it take to read 50 pages of the same book in the same speed?
A.
\(3\) hours
B.
\(4\) hours
C.
\(5\) hours
D.
\(4\dfrac{1}{2}\) hours
Answer:
C.
\(5\) hours
18.
The difference between the S.I. and C.I. for 2 years for a principal of ₹ 5,000 at the rate of interest 8% p.a. is
A.
₹ 32
B.
₹ 35
C.
₹ 38
D.
₹ 42
Answer:
A.
₹ 32
19.
The compound interest on ₹ 5,000 at 12% p.a. for 2 years compounded annually is
A.
₹ 1,072
B.
₹ 1,172
C.
₹ 1,272
D.
₹ 1,372
Answer:
C.
₹ 1,272
20.
At what rate of simple interest, the principle ₹ 48,000 will amount to ₹ 55,560 in 2 years 3 months.
A.
5%
B.
6%
C.
7%
D.
8%
Answer:
C.
7%
21.
Find the ratio of 3 km to 300 m?
A.
3 : 10
B.
10 : 3
C.
1 : 10
D.
10 : 1
Answer:
D.
10 : 1
22.
If the population in town has increased from 20,000 to 25,000 in a year find the percentage increase in population
A.
50%
B.
25%
C.
75%
D.
100%
Answer:
B.
25%
23.
If three candidates A, B and C in a school election got 153, 245 and 102 votes respectively, find the percentage of votes got by the winner?
A.
48%
B.
49%
C.
50%
D.
55%
Answer:
B.
49%
24.
HCF and LCM of two numbers are 16 and 240 respectively. If one of the number is 48, then the other number is
A.
80
B.
60
C.
70
D.
90
Answer:
A.
80
25.
Wilson, Mathan, Guna can complete one round of a circular track in 10, 15 and 20 minutes respectively. If they start together at 7 am from the starting point at what time will they meet together again at the starting point?
A.
8 am
B.
8 pm
C.
5 pm
D.
9 am
Answer:
A.
8 am