Percentage Questions - 1

20% of 400 + 15% of 300 =
  • 140
  • 125
  • 100
  • 145
  • 200
Explanation   

20% of 400 = 400 $\displaystyle \times \frac{20}{100}$ = 80 + 15% of 300 = 300 $\displaystyle \times \frac{15}{100}$ = 45.

= 80 + 45 = 125.

Workspace
480% of 40 + 250% of 25 =
  • 240
  • 250
  • 254.5
  • 262.5
  • 285
Explanation   

480% of 40 = 40 $\displaystyle \times \frac{480}{100}$ = 192 + 250% of 25 = 25 $\displaystyle \times \frac{250}{100}$ = 62.5

192 + 62.5 = 254.5

Workspace
30% of 800 + 40% of ? = 300
  • 200
  • 300
  • 250
  • 150
  • 180
Explanation   

30% of 800 = 800 $\displaystyle \times \frac{30}{100}$ = 240 => 300 – 240 = 60.

40% = 60 => $\displaystyle \frac{60}{40} \times$ 100 = 150.

Workspace
40% of 40% of 500 is ?
  • 40
  • 120
  • 124
  • 88
  • 80
Explanation   

500 $\displaystyle \times \frac{40}{100} = 200 \times \frac{40}{100}$ = 80.

Workspace
22% of 400 ÷ 10% 660
  • 1.33
  • 2
  • 1 $\displaystyle \frac{1}{2}$
  • 4
  • 2 $\displaystyle \frac{2}{3}$
Explanation   

400 $\displaystyle \times \frac{22}{100} = 88 => 660 \times \frac{10}{100}$ = 66

88 ÷ 66 = 1.33

Workspace
45% of 300 - 18% of 250 =
  • 120
  • 130
  • 68
  • 90
  • 123
Explanation   

300 $\displaystyle \times \frac{45}{100} = 135 - 250 \times \frac{18}{100}$ = 45 = > 135 – 45 = 90.

Workspace
128% of 1340 + 159.8% of 4998.2 - 69.88% of 5499 = [approx.]
  • 5400
  • 5860
  • 5473
  • 3898
  • 5726
Explanation   

Round off to the nearest values.

1340 $\displaystyle \times \frac{128}{100} = 1715 + 4998.2 \times \frac{159.8}{100} = 7987 = 9702 – 5499 \times \frac{69.88}{100}$ = 3842.

9702 – 3842 = 5860 [approx.]

Workspace
39% of 486 + ? = 486
  • 306.46
  • 301.46
  • 296.46
  • 298.46
  • 300.46
Explanation   

486 (40 - 1) = 194.40 - 4.86 = 189.54.

486 – 189.54 = 296.46 [or] 486 $\displaystyle \times \frac{61}{100}$ = 296.46.

Workspace
What percent of 1240 is equal to 1488 ?
  • 130%
  • 132%
  • 124%
  • 120%
  • 128%
Explanation   

$\displaystyle \frac{1488}{1240} \times$ 100 = 120%.

Workspace
30% of x = 330, then 125% of x =
  • 1375
  • 1300
  • 1320
  • 1380
  • 1345
Explanation   

$\displaystyle \frac{330}{30} \times$ 125 = 1375.

Workspace

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More Percentage Practice Tests

Percentage Formulas


Every number is 100% of its own value, Ex: 1 is 100% of its own value.

Procedure to find percentage: Ex: "a" is what percent of "b" = b x $\displaystyle \frac{a}{100} = \frac{ab}{100}$.

Fractions can also be expressed as percentages: Ex: A fraction $\displaystyle \frac{6}{5}$ can be expressed in percentage as = $\displaystyle \frac{6}{5} \times 100$ = 120%.

Important fractions:

$\displaystyle \frac{1}{1}$ = 100%

$\displaystyle \frac{1}{2}$ = 50%

$\displaystyle \frac{1}{3}$ = 33.33%

$\displaystyle \frac{1}{4}$ = 25%

$\displaystyle \frac{1}{5}$ = 20%

$\displaystyle \frac{1}{6}$ = 16.66%

$\displaystyle \frac{1}{7}$ = 14.285%

$\displaystyle \frac{1}{8}$ = 12.5%

$\displaystyle \frac{1}{10}$ = 10%

$\displaystyle \frac{1}{12}$ = 8.33%

$\displaystyle \frac{2}{5}$ = 40%

$\displaystyle \frac{2}{3}$ = 66.66%

$\displaystyle \frac{3}{4}$ = 75%

$\displaystyle \frac{3}{5}$ = 60%

$\displaystyle \frac{4}{5}$ = 80%

$\displaystyle \frac{5}{4}$ = 125%

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