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Civil Service · Practice Sheet 7

Sheet code: UAE-CIVIL-SERVICE-S07 · 20 questions

Name: ______________

Date: ______________

1.
Quantitative Aptitude
Find the compound interest on AED 12,000 at 20% per annum compounded annually for 3 years.
Formula:Compound Interest
$A = P\left(1+\dfrac{R}{100}\right)^{T}$
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2.
Quantitative Aptitude
In how many ways can 2 objects be chosen from 10 distinct objects? (Find ⁿᴄᵣ for n = 10, r = 2.)
Formula:Combinations
$^{n}C_{r} = \dfrac{n!}{r!\,(n-r)!}$
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3.
Quantitative Aptitude
A can finish a job in 9 days and B in 11 days. Working together, how long will they take?
Formula:Time & Work (combined)
$T = \dfrac{xy}{x+y}$
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4.
Quantitative Aptitude
Find the average of these 8 numbers: 40, 53, 82, 71, 26, 41, 70, 28.
Formula:Arithmetic Mean
$\bar{x} = \dfrac{\sum x}{n}$
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5.
Quantitative Aptitude
An item is bought for AED 800 and sold for AED 1,200. Find the profit percentage.
Formula:Profit Percentage
$\text{Profit\%} = \dfrac{SP-CP}{CP}\times 100$
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6.
Quantitative Aptitude
Find the average of these 8 numbers: 20, 51, 78, 77, 73, 52, 82, 83.
Formula:Arithmetic Mean
$\bar{x} = \dfrac{\sum x}{n}$
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7.
Quantitative Aptitude
In how many ways can 2 objects be chosen from 5 distinct objects? (Find ⁿᴄᵣ for n = 5, r = 2.)
Formula:Combinations
$^{n}C_{r} = \dfrac{n!}{r!\,(n-r)!}$
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8.
Quantitative Aptitude
The marked price of an item is AED 300. After a 40% discount, find the selling price.
Formula:Discount & Selling Price
$SP = MP\left(1-\dfrac{d}{100}\right)$
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9.
Quantitative Aptitude
A value changes from 900 to 1,080. Find the percentage increase.
Formula:Percentage Change
$\%\,\text{change} = \dfrac{|new-old|}{old}\times 100$
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10.
Quantitative Aptitude
A can finish a job in 18 days and B in 16 days. Working together, how long will they take?
Formula:Time & Work (combined)
$T = \dfrac{xy}{x+y}$
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11.
Quantitative Aptitude
Divide AED 392 between two people in the ratio 2:5. How much does each receive?
Formula:Sharing in a Ratio
$\text{Share} = \text{Total}\times\dfrac{\text{part}}{\text{sum of parts}}$
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12.
Quantitative Aptitude
A can finish a job in 8 days and B in 20 days. Working together, how long will they take?
Formula:Time & Work (combined)
$T = \dfrac{xy}{x+y}$
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13.
Quantitative Aptitude
A invests AED 6,000 and B invests AED 3,000 for the same period. If the total profit is AED 30,000, find A's share.
Formula:Partnership (profit share)
$\text{Share}_A = \text{Profit}\times\dfrac{A}{A+B}$
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14.
Quantitative Aptitude
Find the HCF and LCM of 6 and 24.
Formula:LCM & HCF
$\text{LCM}\times\text{HCF} = a\times b$
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15.
Quantitative Aptitude
What is 10% of 1,100?
Formula:Percentage of a Number
$\text{Value} = \dfrac{P}{100}\times N$
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16.
Quantitative Aptitude
The sum of the ages of two people is 35 years, and one is 13 years older than the other. Find their ages.
Formula:Ages (linear equations)
$x + (x+d) = S$
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17.
Quantitative Aptitude
A invests AED 3,000 and B invests AED 7,000 for the same period. If the total profit is AED 25,000, find A's share.
Formula:Partnership (profit share)
$\text{Share}_A = \text{Profit}\times\dfrac{A}{A+B}$
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18.
Quantitative Aptitude
Find the compound interest on AED 11,000 at 20% per annum compounded annually for 3 years.
Formula:Compound Interest
$A = P\left(1+\dfrac{R}{100}\right)^{T}$
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19.
Quantitative Aptitude
The marked price of an item is AED 1,100. After a 20% discount, find the selling price.
Formula:Discount & Selling Price
$SP = MP\left(1-\dfrac{d}{100}\right)$
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20.
Quantitative Aptitude
Find the compound interest on AED 16,000 at 10% per annum compounded annually for 2 years.
Formula:Compound Interest
$A = P\left(1+\dfrac{R}{100}\right)^{T}$
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