Esther bought some English books at $13 each. She also bought an equal number of Chinese books at a different price. The average price of one English and one Chinese book was $11. Esther paid $44 less for the Chinese books than the English books.
- What was the cost of one Chinese book?
- How many English books did Esther buy?
|
English |
Chinese |
Less |
Number |
1 u |
1 u |
|
Value |
$13 |
$9 |
|
Total value |
13 u |
9 u |
$44 |
(a)
Price of one Chinese book
= 2 x 11 - 13
= 22 - 13
= $9
Amount that Esther paid less for Chinese books than English books
= 13 u - 9 u
= 4 u
4 u = 44
1 u = 44 ÷ 4 = 11
Number of English books that Esther bought
= 1 u
= 11
Answer(s): (a) $9; (b) 11