TNPSC Quantitative Aptitude - Percentage
Exam Duration: 45 Mins Total Questions : 30
860% of 50 + 50% of 860 = ?
- (a)
430
- (b)
516
- (c)
860
- (d)
960
45% of 750 - 25% of 480 = ?
- (a)
216
- (b)
217.50
- (c)
236.50
- (d)
245
218% of 1674 = ? \(\times\) 1800
- (a)
0.5
- (b)
4
- (c)
6
- (d)
None of these
5% of (25% of Rs. 1600) is
- (a)
Rs. 5
- (b)
Rs. 17.50
- (c)
Rs. 20
- (d)
Rs. 25
4598 ia 95% of ?
- (a)
4800
- (b)
4840
- (c)
4850
- (d)
4880
?% of 360 = 129.6
- (a)
36
- (b)
64
- (c)
72
- (d)
77
The different between a number and its two-fifth is 510. What is 10% of the number?
- (a)
12.75
- (b)
85
- (c)
204
- (d)
None of these
Gauri went to the stationers and bought things worth Rs. 25, out of which 30 paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?
- (a)
Rs. 15
- (b)
Rs. 15.70
- (c)
Rs. 19.70
- (d)
Rs. 20
A fruit seller had some apples. He sells 40% apples and still has 420 apples. Originally, he had:
- (a)
588 apples
- (b)
600 apples
- (c)
672 apples
- (d)
700 apples
A person who spends 66\(2\over3\)% of his income is able to save Rs. 1200 per month. His monthly expenses (in Rs.) are:
- (a)
Rs. 1200
- (b)
Rs. 2400
- (c)
Rs. 3000
- (d)
Rs. 3200
If x% of a is the same as y% of b, then z% of b is:
- (a)
\({{xy} \over {z}}\)% of a
- (b)
\(yz\over x\)% of a
- (c)
\(xz\over y\)% of a
- (d)
None of these
If 8% of x = 4% of y, then 20% of x is:
- (a)
10% of y
- (b)
16% of y
- (c)
80% of y
- (d)
None of these
A man spends 35% of his income on food, 25% on children's education and 80% of the remaining on house rent. What percent of his income he is left with?
- (a)
8%
- (b)
10%
- (c)
12%
- (d)
14%
Aman gave 40% of the amount he had to Rohan. Rohan in turn gave one-fourth of what he received from Aman to Sahil. After paying Rs. 200 to the taxi driver out of the amount he got from Rohan, Sahil now has Rs. 600 left with him. How much amount did Aman have?
- (a)
Rs. 4000
- (b)
Rs. 8000
- (c)
Rs. 12,000
- (d)
Data inadequate
In an examination of n questions, a student replied 15 out of the first 20 questions correctly. Of the remaining questions, he answered one-third correctly. All the questions have the same credit. If the student gets 50% marks, the value of n is:
- (a)
20
- (b)
40
- (c)
50
- (d)
100
37\(1\over2\)% of the candidates in an examination were girls, 75% of the boys and 62\(1\over2\)% of the girls passed and 342 girls failed. The number of boys failed was:
- (a)
350
- (b)
360
- (c)
370
- (d)
380
A man bought a house for Rs. 5 lakhs and rents it. He puts 12\(1\over2\)% of each month's rent aside for repairs, pays Rs. 1660 as annual taxes and realises 10% on his investment thereafter. The monthly rent of the house is:
- (a)
Rs. 2460
- (b)
Rs. 2500
- (c)
Rs. 4920
- (d)
Rs. 5000
Price register an increase of 10% on foodgrains and 15% on other items of expenditure. If the ratio of an employee's expenditure on foodgrains and other items be 2: 5, by how much should his salary be increased in order that he may maintain the same level of consumption as before, his present salary being Rs. 2590?
- (a)
Rs. 323.75
- (b)
Rs. 350
- (c)
Rs. 360.50
- (d)
None of these
If inflation increases at a rate of 8% p.a., what will a Rs.20 article cost at the end of two years?
- (a)
Between Rs.20 and Rs. 21
- (b)
Between Rs. 21 and Rs. 22
- (c)
Between Rs. 22 and Rs. 23
- (d)
Between Rs. 23 and Rs. 24
Depreciation applicable to an equipment is 20%. The value of the equipment 3 years from now will be less by:
- (a)
45%
- (b)
48.8%
- (c)
51.2%
- (d)
60%
The population of a variety of tiny bush in an experimental field increased by 10% in the first year, increased by 8% in the second year but decreased by 10% in the third year. If the present number of business in the experimental field is 26730, then the number of bushes in the beginning was:
- (a)
25000
- (b)
27000
- (c)
28000
- (d)
24600
The production of a company has ups and downs every year. The production increases for two consecutive years consistently by 15% and in third year it decreases by 10%. Again in the next two years it increases by 15% each year and decreases by 10% in the third year. If we start counting from the year 1998, approximately what will be the effect on production of the company in 2002?
- (a)
27% increase
- (b)
32% increase
- (c)
37% increase
- (d)
42% increase
- (e)
52% increase
If A's height is 40% less than that of B, how much percent B's height is more than that of A?
- (a)
33\(1\over3\)%
- (b)
40%
- (c)
60%
- (d)
66\(2\over3\)%
A's salary is 40% of B's salary which is 25% of C's salary. What percentage of C's salary is A's salary?
- (a)
5%
- (b)
10%
- (c)
15%
- (d)
20%
In an examination, the percentage of students qualified to the number of students appeared from school A is 70%. In school B, the number of students appeared is 20% more than the students appeared from school A and the number of students qualified from school B is 50% more than the students qualified from school A. What is the percentage of students qualified to the number of students appeared from school B?
- (a)
30%
- (b)
70%
- (c)
78.5%
- (d)
87.5%
One type of liquid contains 20% water and the second type of liquid contains 35% of water. A glass is filled with 10 parts of first liquid and 4 parts of second liquid. The percentage of water in the new mixture in the glass is:
- (a)
20%
- (b)
24\(2\over7\)%
- (c)
37%
- (d)
40%
The weight of the container alone is 25% of the container filled with a certain fluid. When some fluid is removed, the weight of the container and remaining fluid is 50% of the original total weight. What fractional part of the liquid has been removed?
- (a)
\(1\over3\)
- (b)
\(1\over2\)
- (c)
\(2\over3\)
- (d)
\(3\over4\)
From a container having pure milk, 20% is replaced by water and the process is repeated thrice. At the end of the third operation, the milk is:
- (a)
40% pure
- (b)
50% pure
- (c)
51.2% pure
- (d)
58.8% pure
Due to an increase of 30% in the price of eggs, 3 eggs less are available for Rs.7.80. The present rate of eggs per dozen is:
- (a)
Rs. 8.64
- (b)
Rs. 8.88
- (c)
Rs. 9.36
- (d)
Rs. 10.40
In a hotel, 60% had vegetarian lunch while 30% had non- vegetarian lunch and 15% had both types of lunch. If 96 people were present, how many did not eat either type of lunch?
- (a)
20
- (b)
24
- (c)
26
- (d)
28