TNPSC Group 1 2014 Preliminary Examination
Aptitude Questions 26 to 45
26.
The value of \(\dfrac{2.48 \times 2.48 - 1.52 \times 1.52}{0.96}\) is
Answer:
A.
4.0
27.
If \(2^{x+y} = 2^{x-y} = 16\) then \(y\) is
Answer:
C.
0
28.
If \(x+y=12,\ xy=32\) and xy = 32 then \(\dfrac{1}{x}+\dfrac{1}{y}\) is
Answer:
D.
\(\dfrac{3}{8}\)
29.
\(1+\dfrac{5}{7}\text{ of }6\dfrac{3}{10}-\dfrac{2}{9}\) = ?
Answer:
B.
0
30.
By selling an article for Rs. 480, a person lost 20%. For what amount should he sell it to make a profit of 20%?
Answer:
C.
Rs. 720
31.
The highest common factor and lowest common multiple of two numbers are 12 and 144 respectively. If one number is 36. Find the other number.
Answer:
D.
48
32.
Three numbers are in the ratio 3:4:5 and their LCM is 240. Then the HCF of these number is
Answer:
A.
4
33.
LCM of two numbers is 14 times their HCF. The sum of LCM and HCF is 600. If one number is 280 then the other number is
Answer:
C.
80
34.
The compound interest on Rs. 30,000 at 7% per annum is Rs. 4,347. The period in years is
Answer:
A.
2
35.
A sum of money doubles itself in 20 years in simple interest. Then the rate of interest per annum is
Answer:
A.
5%
36.
The difference between compound interest and the simple interest on Rs. 1,250 for 2 years at 8% is
Answer:
D.
Rs. 8
37.
A flower garden is in the shape of a rhombus. The length of its diagonals are 18 m and 25 m. Find the area of the flower garden.
Answer:
B.
225 m²
38.
If a square and a rhombus stand on the same base, then the ratio of the area of the square and the rhombus is
Answer:
A.
greater than 1
39.
Two taps A and B can fill a tank in 10 hours and 15 hours respectively. Both the taps are opened for 4 hours and then B is turned off. The time taken by A to fill the remaining tank is
Answer:
D.
10/3 hours
40.
A and B can do a work in 12 days B and C can do it in 15 days C and A can do it in 20 days. Then the number of days required to complete the work A, B, C together is
Answer:
B.
10
41.
If 9 girls can prepare 135 garlands in 3 hours, number of girls to prepare 270 garlands in 1 hour is
Answer:
B.
54
42.
The sum of numbers common to two diagrams is
Answer:
A.
118
43.
(1) D is taller than C but not as tall as B.
(2) C is taller than A.
Who among A, B, C and D is the tallest?
(2) C is taller than A.
Who among A, B, C and D is the tallest?
Answer:
B.
B
44.
Find the next diagram.
Answer:
B.
45.
Find the missing number in the following series:
1, 8, 9, 64, 25, ?, 49
1, 8, 9, 64, 25, ?, 49
Answer:
D.
216