Question
Gwen bought some Social Science books at $13 each. She also bought an equal number of History books at a different price. The average price of one Social Science and one History book was $11. Gwen paid $24 less for the History books than the Social Science books.
  1. What was the cost of one History book?
  2. How many Social Science books did Gwen buy?
3 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

Gwen bought some Social Science books at $13 each. She also bought an equal number of History books at a different price. The average price of one Social Science and one History book was $11. Gwen paid $24 less for the History books than the Social Science books.
  1. What was the cost of one History book?
  2. How many Social Science books did Gwen buy?