PERCENTS J4

 

In a box of 500 books, 60 are red in colour, 140 are yellow in colour while the rest are bluish in color. Give out the percentage of blue books.

 

solution

 

1st we have to get the number of blue books.

 

 blue books = 500 – 60 - 140 = 300

 

then,=  300 x 100

            500

 

then,=  300

             5

 

   = 60%

 

Hence percentage of blue books is 60%

 

TRY THIS...............

  

In a box of 800 books, 300 are yellow in colour, 200 are red, while the rest are greyishish in color. Give out the percentage of grey books.