Aptitude test on Percentages -quantitative analysis

Percent means out of 100.
We can find any of the asking value by comparing on this 100 with the given value.
N:B: IF we can remember the percent value in terms of fractional value and vice versa, we can find the answer easily & quickly.


Similarly we can convert fraction in to percentage.

The price of a Maruti car rises by 30% while the sales of the car comes down by 20%.What is the percentage change in the total revenue?
(a) -4%
(b) -2%
(c) +4%
(d) +2%

. A person who has a certain amount with him goes to market. He can buy 50 oranges or 40 mangoes. He retains 10% of the amount for taxi fare and buys 20 mangoes and the balance, he purchases oranges. Number of oranges he can purchase is:

(a) 36
(b) 40
(c) 15
(d) 20

I bought 5 pens, 7 pencils and 4 erasers. Rajesh bought 6 pens, 8 erasers and 14 pencils for an amount which has half more what I had paid. What percent of the total amount paid by me was paid for the pens?
(a) 37.5%
(b) 62.5%
(c) 50%
(d) None of these

One bacteria splits in to eight bacteria of the next generation. But due to environment, only 50% of one generation can produce the next generation. If the seventh generation number is 4096 million, what is the number in the first generation?
(a) 1 million
(b) 2 million
(c) 4 million
(d) 8 million

. 2/5 of the voters promise to vote for P and the rest promised to vote for Q. Of these, on the last day 15% of the voters went back of their promise to vote for P and 25% of voters went back of their promise to vote for Q, and P lost by 2 votes. Then, the total number of voters is:
(a) 100
(b) 110
(c) 90
(d) 95

A report consists of 20 sheets each of 55 lines and each such line consists of 65 characters. This report is reduced on to sheets each of 65 lines such that each line consists of 70 characters. The percentage reduction in the number of sheets closet to:
(a) 20
(b) 5
(c) 30
(d) 35

The rate of increase of the price of sugar is observed to be two percent more than the inflation rate expressed in percentage. The price of sugar, on January 1, 1994 is Rs20 per kg. The inflation rates of the years 1994 and 1995 are expected to be 8% each. The expected price of sugar on January 1, 1996 would be:
(b) Rs24.00
(c) Rs24.20
(d) Rs24.60

A trader makes a profit equal to the selling price of 75 articles when he sold 100 of the articles. What % profit did he make in the transaction?


A merchant buys two articles for Rs.600. He sells one of them at a profit of 22% and the other at a loss of 8% and makes no profit or loss in the end. What is the selling price of the article that he sold at a loss?
Rs. 404.80
Rs. 440
Rs. 536.80
Rs. 160

A trader professes to sell his goods at a loss of 8% but weights 900 grams in place of a kg weight. Find his real loss or gain per cent.
2% loss
2.22% gain
2% gain
None of these

Rajiv sold an article for Rs.56 which cost him Rs.x. If he had gained x% on his outlay, what was his cost?

Rs. 40
Rs. 45
Rs. 36
Rs. 28

A trader buys goods at a 19% Amount on the label price. If he wants to make a profit of 20% after allowing a Amount of 10%, by what % should his marked price be greater than the original label price?
None of these

If apples are bought at the rate of 30 for a rupee. How many apples must be sold for a rupee so as to gain 20%?

One year payment to the servant is Rs. 200 plus one shirt. The servant leaves after 9 months and receives Rs. 120 and a shirt. Then find the price of the shirt.
Rs. 80
Rs. 100
Rs. 120
Cannot be determined

Two merchants sell, each an article for Rs.1000. If Merchant A computes his profit on cost price, while Merchant B computes his profit on selling price, they end up making profits of 25% respectively. By how much is the profit made by Merchant B greater than that of Merchant A?
Rs. 50

A merchant marks his goods in such a way that the profit on sale of 50 articles is equal to the selling price of 25 articles. What is his profit margin?

A merchant marks his goods up by 75% above his cost price. What is the maximum % Amount that he can offer so that he ends up selling at no profit or loss?

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