Min bought some Geography books at $11 each. She also bought an equal number of Japanese books at a different price. The average price of one Geography and one Japanese book was $8. Min paid $60 more for the Geography books than the Japanese books.
- What was the cost of one Japanese book?
- How many Geography books did Min buy?
|
Geography |
Japanese |
More |
Number |
1 u |
1 u |
|
Value |
$11 |
$5 |
|
Total value |
11 u |
5 u |
$60 |
(a)
Price of one Japanese book
= 2 x 8 - 11
= 16 - 11
= $5
Amount that Min paid more for Geography books than Japanese books
= 11 u - 5 u
= 6 u
6 u = 60
1 u = 60 ÷ 6 = 10
Number of Geography books that Min bought
= 1 u
= 10
Answer(s): (a) $5; (b) 10