# Question 3 & 4

Question 3: A person has 180 pens out of which 9 are blue, What is percentage of blue pens ?

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Solution:

This is question asking percentage of some pens from a collection of pens!

To solve this we should understand Percentage !

visit this link as well for percent formula

Lets suppose 9 is ‘x’ percent of 180

i-e

Question 4: A student got 68 marks, which are 85% of total marks. How many total marks are there ?

Solution:

Lets suppose total marks = x

Now because the boy got 68 or 85 % marks from total marks ‘x’

it means

68 is 85 % of x

we cam write it as ;

So, total marks were 80

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