Worksheet on Percentage of a Number

Practice the questions given in the worksheet on percentage of a number.

We know, to find the percent of a number we obtain the given number and then multiply the number by the required percent i.e., x % of a = \(\frac{x}{100}\) × a

1. Find the following:

(i) 22 % of 140   

(ii) 25 % of $ 750               

(iii) 16.5 % of 5000 kg

(iv) 21/2 % of 80 l

(v) 0.4 % of 8 km              

(vi) 120 % of 1000

(vii) 12 % of 360 m       

(viii) 22/7 % of 7 l

(ix) 0.8 % of 250 g

(x) \(\frac{3}{4}\) % of $ 780

(xi) 12 % of 620

(xii) 1.25 % of 1250 mg

(xiii) 31/4 % of $ 5000

(xiv) \(\frac{3}{5}\) % of 725 cm

(xv) 31/3 % of 90 km


2. Find the value of the following:

(i) 5% of 30 m

(ii) 12% of $800

(iii) 10% of 70 km

(iv) 4.5% of 250 g

(v) 30% of $200

(vi) 12% of 100 kg

(vii) 125% of 16 l

(viii) 8% of 150 cm

(ix) 8% of 1 kg

(x) 25% of $350


3. What is 5 % of $ 1400?

4. What is 7 % of $ 7150?

5. What is 40 % of 400 kg?


6. Which is greater? Put >, < or = sign.

(i) 15% of 70 m …………. 25% of 60 m

(ii) 8% of $500 …………. 5% of $1000

(iii) 50% of 1 kg …………. 20% of 2000 g

(iv) 15% of $250 …………. 40% of $150


7. How many liters is 20 % of 15.125 liters?

8. In a public show 75 % of seats were filled.  If there were 600 seats in the hall, how many seats were vacant?

9. A man earns $3580 per month and spends 65 % of it. How much money does he save every month?

10. To clear his stock a shopkeeper offers a discount of 15 %. Find the discount on goods worth $500?

11. An alloy of copper and zinc contains 45 % of copper and the rest is zinc. Find the weight of the zinc in 2 kg of the alloy?

12. In an exam, 85 % of the children pass. Find the number of children who passed, if there were 1700 children.

13. Sam bought an electric iron at a price 25% less than the original price. If the original price of the iron is $2560, at what price did Sam buy the electric iron?

14. Ron wants to buy a television. The shopkeeper agreed to give Ron Television at a price less than the original price. So Ron Just had to pay $45000 for the television with original price of $50000. What was the percentage of discount given to Ron?


Answers for the worksheet on percentage of a number are given below to check the exact answers of the above questions.


Answers:


1. (i) 30.8

(ii) $ 187.50

(iii) 825 kg

(iv) 2 l

(v) 32 m

(vi) 1200

(vii) 43.2 m             

(viii) 4/25 l          

(ix) 2 g

(x) $  5.85

(xi) 74.4               

(xii) 15.625 mg

(xiii) $ 162.50     

(xiv) 4 .35 cm

(xv) 3 km


2. (i) 1.5 m

(ii) $96

(iii) 7 km

(iv) 11.25 g

(v) $60

(vi) 12 kg

(vii) 20 l

(viii) 12 cm

(ix) 80 g

(x) $87.50


3. $ 70

4. $ 500.50

5. 160 kg

6. (i) <

(ii) <

(iii) >

(iv) <


7. 3.025 liters

8. 150 seats

9. $ 1253

10. $ 75

11. 1.1 kg             

12. 1445

Worksheet on Percentage of a Number

13. $1920

14.10%

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