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Quiz 1
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Q.1
What is 20% of 25% of 300 ?
150
60
45
15
Q.2
0.001 is equivalent to :
10%
1%
0.01%
0.1%
Q.3
The price of an articles was increased by r%. Later the new price was decreased by r%. If the latest price was Rs. 1, then the original price was :
Rs. 1
Rs. $$\left( {\frac{{1 - {r^2}}}{{100}}} \right)$$
Rs. $$\frac{{\sqrt {1 - {r^2}} }}{{100}}$$
Rs. $$\frac{{10000}}{{\left( {10000 - {r^2}} \right)}}$$
Q.4
In September 2009, the sales of a product were $$\frac{2}{3}$$rd of the that in July 2009. In November 2009, the sales of the product were higher by 5% as compared to September 2009. How much is the percentage of increase on sales in November 2009 with respect to the base figure in July 2009 ?
- 20%
+ 25%
- 30%
+ 40%
Q.5
The population of a town is 4.2 × 10
6
. If the population increases by 75 per 1000 per annum, then what will be the population after 2 years ?
4633628
4853625
5253495
5853615
Q.6
A's marks in Biology are 20 less than 25% of the total marks obtained by him in Biology, Maths and Drawing. If his marks in Drawings be 50, what are his marks in Maths ?
40
45
50
Cannot be determined
Q.7
If x = 63% of y, then y
2
is approximately what percent of x
2
?
125%
200%
250%
350%%
Q.8
A number is first decreased by 10% and then increased by 10%. The number so obtained is 50 less than the original number. The original number is :
5000
5050
5500
5900
Q.9
A city has a population of 300000 out of which 180000 are males. 50% of the population is literate. If 70% of the males are literate, then the percentage of female who are literate is :
20%
25%
35%
45%
Q.10
40% of 60% of 32% of an amount is Rs. 432. What is the amount ?
Rs. 5000
Rs. 5600
Rs. 6400
None of these
Q.11
In a test, minimum passing percentage for girls and boys is 35% and 40% respectively. A boy scored 483 marks and failed by 117 marks. What is the minimum passing marks for girls ?
425
500
520
625
None of these
Q.12
A clothing supplier stores 800 coats in a warehouse, of which 15 percent are full-length coats. If 500 of the short-length coats are removed form the warehouse, then what percent of the remaining costs are full length ?
5.62%
9.37%
35%
40%
Q.13
5 kg of metal A and 20 kg of metal B are mixed to form an alloy. The percentage of metal A in the alloy is ?
20%
25%
40%
None of these
Q.14
23% of 8040 + 42% of 545 = ? % of 3000
56.17
63.54
69.27
71.04
None of these
Q.15
Peter could save 10% of his income. But two years later when his income is increased by 20%, he could save the same amount only as before. By how much percent has his expenditure increased ?
22%
$$22\frac{2}{9}\% $$
$$23\frac{1}{3}\% $$
24%
Q.16
A papaya tree was planted 2 years ago. It grows at the rate of 20% every year. If at present, the height of three is 540 cm, what was it when the tree was planted ?
324 cm
375 cm
400 cm
432 cm
Q.17
While purchasing one item costing Rs. 400, I had to pay the sales tax at 7% and on another costing Rs. 6400, the sales tax was 9%. What percent of the sales tax I had to pay, taking the two items together on an average ?
8%
$$8\frac{13}{17}$$%
$$8\frac{15}{17}$$%
$$8\frac{1}{2}$$%
Q.18
The difference between 54% of a number and 26% of the same number is 22526. What is 66% of that number ?
48372
49124
51218
53097
None of these
Q.19
If 75% of a number is added to 75, then the result is the number itself. The number is :
50
60
300
400
Q.20
A man spends a part of his monthly income and saves the rest. The ratio of his expenditure to the saving is 61 : 6. If his monthly income is Rs. 8710, the amount of his monthly savings is :
Rs. 870
Rs. 690
Rs. 980
Rs. 780
Q.21
A number is increased by 15% and then decreased by 25% and the number becomes 22 less than the original number. The original number is :
140
160
120
100
Q.22
What is the difference between 0.6 and 0.6% ?
5.94
0.594
60
54
Q.23
A number is decreased by 10% and the resulting number is again decreased by 20%. What is the final percentage of decrease ?
25%
26%
27%
28%
Q.24
In an office, 40% of the staff is female. 70% of the female staff and 50% of the male staff are married. The percentage of the unmarried staff in the office is :
65%
42%
60%
64%
Q.25
A sample of 50 litres of glycerine is found to be adulterated to the extent of 20%. How much pure glycerine should be added to it so as to bring down the percentage of impurity to 5% ?
155 litres
150 litres
150.4 litres
140 litres
Q.26
What percentage of the whole week does Ajay spend in office, if his office hours are 9 am to 5 pm from Monday to Friday ?
33.33%
23.81%
25.86%
42.23%
Q.27
The average marks obtained in a class of 50 students is 70%. The average of first 25 is 60% and that of 24 is 80%. What is the mark obtained by the last student ?
90%
60%
80%
70%
Q.28
If 50% of (P - Q) = 30% of (P + Q) and Q = x% of P, then the value of x is :
30
25
20
50
Q.29
A's salary was decreased by 50% and subsequently increased by 50%. How much percent does he lose ?
25%
30%
20%
No loss
Q.30
A man spend $$7\frac{1}{2}$$% of his money and after spending 75% of the remaining he had Rs. 370 left. How much money did he have :
1200
1600
1500
1400
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