Dana bought some Chinese books at $14 each. She also bought an equal number of English books at a different price. The average price of one Chinese and one English book was $10. Dana paid $56 more for the Chinese books than the English books.
- What was the cost of one English book?
- How many Chinese books did Dana buy?
|
Chinese |
English |
More |
Number |
1 u |
1 u |
|
Value |
$14 |
$6 |
|
Total value |
14 u |
6 u |
$56 |
(a)
Price of one English book
= 2 x 10 - 14
= 20 - 14
= $6
Amount that Dana paid more for Chinese books than English books
= 14 u - 6 u
= 8 u
8 u = 56
1 u = 56 ÷ 8 = 7
Number of Chinese books that Dana bought
= 1 u
= 7
Answer(s): (a) $6; (b) 7