SOLUTION: Suppose the Davao Light and Power Company donated 2500 books to Davao City National High School library; 40% are earth science books, 30% of schools are chemistry books, 20% are ma

Algebra ->  Finance -> SOLUTION: Suppose the Davao Light and Power Company donated 2500 books to Davao City National High School library; 40% are earth science books, 30% of schools are chemistry books, 20% are ma      Log On


   

Question 1187631: Suppose the Davao Light and Power Company donated 2500 books to Davao City National High School library; 40% are earth science books, 30% of schools are chemistry books, 20% are math books, 5% are English books, and the other 5% are physics books. How many books are earth science and how many books are physics?
Answer by ikleyn(52788) About Me  (Show Source):
You can put this solution on YOUR website!
.

The number of earth science books is 40% of 2500.

The number of Physics books is 5% of 2500.


These questions are of the  " 2 x 2 = 4 "  level of complexity.

It is the level of an advanced alumni of a kindergarten.


------------

If you need very introductory knowledge on percentage, look into the link
    - Percentage problems
in this site.