Emma bought some Chinese books at $14 each. She also bought an equal number of Geography books at a different price. The average price of one Chinese and one Geography book was $10. Emma paid $88 less for the Geography books than the Chinese books.
- What was the cost of one Geography book?
- How many Chinese books did Emma buy?
|
Chinese |
Geography |
Less |
Number |
1 u |
1 u |
|
Value |
$14 |
$6 |
|
Total value |
14 u |
6 u |
$88 |
(a)
Price of one Geography book
= 2 x 10 - 14
= 20 - 14
= $6
Amount that Emma paid less for Geography books than Chinese books
= 14 u - 6 u
= 8 u
8 u = 88
1 u = 88 ÷ 8 = 11
Number of Chinese books that Emma bought
= 1 u
= 11
Answer(s): (a) $6; (b) 11