Using OF Operator in Percentages


 
 
Concept Explanation
 

Using OF Operator in Percentages

 

Using OF operator in Percentages:

We simply replace the OF operator with a multiply sign.

Illustration:

1. ;;;frac{3}{4}; of ;80; pencils =frac{3}{4} times 80 = 60; pencils

2. ;;;40% ;of; 300 =frac{40}{100} times 300 = 120

Illustration: Find  frac{5}{9} of  180.

Solution:  frac{5}{9}times 180

               =5times 20  = 100

 

Illustration: Find the number of cups if frac{4}{7};;of ;;4200;;=;;total ;;number ;;of ;;cups

Solution:   Total number of cups =  frac{4}{7}times 4200

                                                 =4times 600

                                                = 2400

Illustration: Find frac{5}{7};; of ;;98

Solution:  frac{5}{7}times 98

              =5times 14

             = 70

Sample Questions
(More Questions for each concept available in Login)
Question : 1

When 7% is lost in cleaning and filling rice in bags, a country can export 55 lakh tons of rice. On the other hand if 3% is lost in grinding. It can export 67 lakh tones of rice. The production of rice in the country in lakh of tons is

Right Option : C
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Explanation
Question : 2

If 23% of a is 46, then find a.

Right Option : A
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Explanation
Question : 3

Out of her total income Mrs Sharma spends 20% on house rent and 70% of the rest on household expenditure. If she saves Rs 1800, what is the total income?

Right Option : A
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Explanation
 
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