Percentage Test Question with Solution – TNPSC Aptitude Video Class

[vc_row][vc_column][vc_column_text]

Test Question With Solution – Percentage 

[/vc_column_text][vc_column_text]1.50 kg is what percent of 250 kg?

a) 26%      b) 15%      c)20%      d) 18%[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%23113af4″ custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1491036277627-2f0fc1f4-0e1e” use_custom_heading=”true”]Here Percentage is asked, so, Formula 1

(50/250) x 100

= 20%

Answer ==> C) 20%[/vc_toggle][vc_column_text]2.If 20% of x= 90, find x.

a) 350        b) 450       c) 250       d) 550[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%233804f2″ custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1491036605984-c85ac97e-0bf6″ use_custom_heading=”true”]Here percentage is given,

20% of x = 90

x X (20/100) = 90

x = (90 x 100)/20

x = 450

Answer ==> b) 450 [/vc_toggle][vc_column_text]3. What is 5% of 50% of 500?

a) 12.5       b) 25      c) 1.25      d)6.25[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%230602f2″ custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1491037121201-6312614a-8a91″ use_custom_heading=”true”]5 % of 50 % of 500

Let us take : 50 % of 500

then [500 x(50/100)]

Now, 5% of [500 x(50/100)]

Therefore, [500 x (50/100)] x (5/100) = 25/2

=12.5

Answer ==> a) 12.5[/vc_toggle][vc_column_text]4. A person’s salary has increased from Rs. 7200 to 8100. what is the percentage increase in salary?

a) 25 %        b)18 %         c)16 2/3 %       d)12  1/2 %[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%230d09ef” custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1491037517145-7c0b1700-068b” use_custom_heading=”true”]

% change = (change in value / initial value) x 100

change in value = 8100 – 7200

= 900

% change = (900/7200) x 100

=12.5

Answer ==> d) 12 1/2[/vc_toggle][vc_column_text]5. The strength of a college was 3000 last year. If there is an increase of 20 % this year the the present strength is

a) 3200         b) 3400       c) 3600       d) 3800[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%230300e8″ custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1491040160481-60d91a4d-de60″ use_custom_heading=”true”]

Strength = 3000

increment = 3000 x (20/100)

= 600

present strength = 3000 + 600

= 3600

Answer ==> c) 3600[/vc_toggle][vc_column_text]6. In a company, there are 724 employees. 25 % employees left the job. Find the number of rest of employees.

a) 543       b) 550       c) 578      d) 565[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%233004f2″ custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1491040443956-a13fc553-6920″ use_custom_heading=”true”]

Total employees = 724

25 % of 724 = 724 x (25/100)

= 181

181 employees left the company.

therefore, 724 – 181 = 543

Answer ==> a) 543[/vc_toggle][vc_column_text]7. The population of a town is 126800 increases by 15% in the first year and decreases by 20 % in the second year. What is the population of the town at the end of second year?

a) 174984       b) 135996        c) 116656      d) 145820[/vc_column_text][vc_column_text]8) The length of a rectangle is increased by 50%. By what percent would the breadth have to be decreased to maintain the same area?

a) 37.5 %             b) 33.33 %           c) 25 %            d) None of these.[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%234d0cf2″ custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1491284102390-1a138778-b6bf” use_custom_heading=”true”]

 area of rectangle = L x B

let initial L = 100% B = 100%

So, area = 100 x 100 = 10000

length is increased by 50 %, New length = 150

area = 150 x b = 10000 (same area)

b = 10000/150

b = 66.66 %

Question is By what % breadth have to be decreased?

So, % change = (change in value)/(Initial Value x 100)

                         = [(100 – 66.66%)/100] x 100

                         = 33.33 %

Answer = b) 33.33 %[/vc_toggle][vc_column_text]9) Find the percentage increase in the area of a triangle if its each side is doubled.

a) 100 %             b) 200 %           c) 300 %            d) 400 %[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%234d0cf2″ custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1495121873962-e73a0090-2a24″ use_custom_heading=”true”]

area = 1/2 bh

If sides are doubled, then b = 2b; h = 2h

Then, area = 1/2 (2b x 2h)

= 2bh

% difference = ((Final value – Initial Value)/Initial Value ) X 100

= ((2bh – 0.5 bh) / 0.5 bh) X 100

= 1.5 x 2 x 100

= 300 %

[/vc_toggle][vc_column_text]10) Ramesh spent 20% of his pocket money on buying clothes. After spending 25% of the remainder in buying shoes,  he has Rs.480 left. What was his pocket money?

a) Rs.600             b) Rs.800           c) Rs.900            d) Rs.1000[/vc_column_text][vc_toggle title=”Solution” custom_font_container=”tag:h2|font_size:17|text_align:left|color:%234d0cf2″ custom_google_fonts=”font_family:Vollkorn%3Aregular%2Citalic%2C700%2C700italic|font_style:400%20regular%3A400%3Anormal” el_id=”1495122153569-59eb8c7f-24b6″ use_custom_heading=”true”]

Let the total pocket money be Y.

Rupees spent on clothes is Y * 20/100

The remaining amount after spending on clothes is,

Y  –  (20Y/100)  ;    [  Y -> Total ;      (20Y/100) -> Clothes ]

=  (100Y – 20Y)/100

= 80Y/100

25 % of the above remainder is spent on shoes, therefore

25 % of (80Y/100)  =   (25/100) * (80Y/100)

= (80Y * 25) / 10000

= 2000 Y / 10000

Therefore, Total Money Y = (20Y/100) + (2000Y/10000) + 480

     (clothes)      +    (shoes)                + (remaining left)

Y = (2000Y  +   2000 Y  +  4800000 ) / 10000

Y = (4000 Y + 4800000 ) / 10000

10000 Y = 4000 Y + 4800000

10000 Y – 4000 Y = 4800000

6000 Y = 4800000

Y = 4800000 / 6000

Y = 800 rupees

[/vc_toggle][vc_column_text]

Watch TNPSC Aptitude video class in Tamil & English – Percentage

[/vc_column_text][/vc_column][/vc_row]