(A) Let the total population of the city be $100$.People reading Dainik Jagran $= 25$.People reading Prabhat Khabar $= 20$.People reading both $= 8$.P

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(A) Let the total population of the city be $100$.People reading Dainik Jagran $= 25$.People reading Prabhat Khabar $= 20$.People reading both $= 8$.People reading only Dainik Jagran $= 25 - 8 = 17$.People reading only Prabhat Khabar $= 20 - 8 = 12$.Percentage of people reading advertisements $= (\text{Only Dainik Jagran readers} \times 30\%) + (\text{Only Prabhat Khabar readers} \times 40\%) + (\text{Both readers} \times 50\%)$.$= (17 \times 0.30) + (12 \times 0.40) + (8 \times 0.50)$.$= 5.1 + 4.8 + 4.0 = 13.9\%$.Thus,$13.9\%$ of the population reads an advertisement.

Competitive Quantitative Aptitude Percentage Percentage

Medium

In Jamshedpur,only two newspapers,Dainik Jagran and Prabhat Khabar,are published. It is known that $25 \%$ of the city population reads Dainik Jagran and $20 \%$ reads Prabhat Khabar,while $8 \%$ reads both the newspapers. It is also known that $30 \%$ of those who read Dainik Jagran but not Prabhat Khabar look into advertisements,$40 \%$ of those who read Prabhat Khabar but not Dainik Jagran look into advertisements,and $50 \%$ of those who read both the newspapers look into advertisements. What is the percentage of the population who read an advertisement?

A
$13.9$
B
$15.8$
C
$17.2$
D
$21.2$

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Percentage

Two numbers $A$ and $B$ are such that the sum of $5 \%$ of $A$ and $4 \%$ of $B$ is $\frac{2}{3}$ of the sum of $6 \%$ of $A$ and $8 \%$ of $B$. The ratio $A:B$ is

Medium

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Two numbers $A$ and $B$ are such that the sum of $6\%$ of $A$ and $4\%$ of $B$ is two-thirds of the sum of $6\%$ of $A$ and $8\%$ of $B$. Find the ratio of $A:B$.

Medium

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In the last financial year,a car company sold $41,800$ cars. In this year,the target is to sell $51,300$ cars. By what percent must the sale be increased?

Medium

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An empty fuel tank of a car was filled with $A$ type petrol. When the tank was half-empty,it was filled with $B$ type petrol. Again when the tank was half-empty,it was filled with $A$ type petrol. When the tank was half-empty again,it was filled with $B$-type petrol. What is the percentage of $A$ type petrol at present in the tank?

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$A$ number is increased by $84$,it becomes $107 \%$ of itself. What is the number?

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Two numbers $A$ and $B$ are such that the sum of $5 \%$ of $A$ and $4 \%$ of $B$ is $\frac{2}{3}$ of the sum of $6 \%$ of $A$ and $8 \%$ of $B$. The ratio $A:B$ is

Two numbers $A$ and $B$ are such that the sum of $6\%$ of $A$ and $4\%$ of $B$ is two-thirds of the sum of $6\%$ of $A$ and $8\%$ of $B$. Find the ratio of $A:B$.

In the last financial year,a car company sold $41,800$ cars. In this year,the target is to sell $51,300$ cars. By what percent must the sale be increased?

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