WORD PROBLEMS 4

In a box of 500 books, 170 are red in colour while the rest are bluish in colour. Give out the percentage of blue books.

solution

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

 blue books = 500 - 170 = 330

then,=  330 x 100

           500

then,=  330

             5

   = 66%

Hence percentage of blue books is 66%

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

In a box of 800 books, 420 are yellow in colour while the rest are bluish in color. Give out the percentage of blue books.