(A) Total characters in the report $= 25 \times 60 \times 75 = 112,500$.Let the new number of pages be $n$.Then,$n \times 55 \times 90 = 112,500$.$n =

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(A) Total characters in the report $= 25 \times 60 \times 75 = 112,500$.Let the new number of pages be $n$.Then,$n \times 55 \times 90 = 112,500$.$n = \frac{112,500}{55 \times 90} = \frac{112,500}{4,950} \approx 22.72$.Since the number of pages must be a whole number,we round $22.72$ to $23$ pages.The original number of pages was $25$.The new number of pages is $23$.Change in pages $= 23 - 25 = -2$.Percentage change $= \frac{-2}{25} \times 100 = -8 \%$.

Competitive Quantitative Aptitude Percentage Percentage

Easy

Suman's project report on 'Development with dignity',consists of $25$ pages,each with $60$ lines and $75$ characters per line. If the number of lines is reduced to $55$ but the number of characters per line is increased to $90$,what is the percentage change in the number of pages? (Assume the number of pages to be a whole number.)

A
$-8$
B
$+8$
C
$+12$
D
$80$

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Percentage

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Percentage

The present population of a town is $26010$. It increases annually at the rate of $2\%$. What was the population of the town two years ago?

Easy

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The population of a town is $123,456,789$. It increases by $10\%$ during the first year,$20\%$ during the second year,and $30\%$ during the third year. What is the average percentage increase during the three years?

Medium

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When $40$ is subtracted from $30 \%$ of a number,the result is $50$. What is the value of the number?

Easy

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Milk contains $5 \%$ water. What quantity of pure milk should be added to $10$ litres of milk to reduce this to $2 \%$?

Medium

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In an examination,$65 \%$ of students passed in Civics and $60 \%$ in History,while $40 \%$ passed in both of these subjects. If $90$ students failed in both History and Civics,then what is the total number of students?

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The present population of a town is $26010$. It increases annually at the rate of $2\%$. What was the population of the town two years ago?

The population of a town is $123,456,789$. It increases by $10\%$ during the first year,$20\%$ during the second year,and $30\%$ during the third year. What is the average percentage increase during the three years?

When $40$ is subtracted from $30 \%$ of a number,the result is $50$. What is the value of the number?

Milk contains $5 \%$ water. What quantity of pure milk should be added to $10$ litres of milk to reduce this to $2 \%$?

In an examination,$65 \%$ of students passed in Civics and $60 \%$ in History,while $40 \%$ passed in both of these subjects. If $90$ students failed in both History and Civics,then what is the total number of students?

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