PERCENTAGES 1

In a box of 400 books, 170 are red 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 = 400 - 170 = 230

then,=  230 x 100

             400

then,=  230

               4

   = 57.5%

Hence percentage of blue books is 57.5%

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

In a box of 700 books, 420 are yellow in colour while the rest are bluish in color. Give out the percentage of blue books.