Raeann bought some Literature books at $7 each. She also bought an equal number of Geography books at a different price. The average price of one Literature and one Geography book was $5. Raeann paid $8 less for the Geography books than the Literature books.
- What was the cost of one Geography book?
- How many Literature books did Raeann buy?
|
Literature |
Geography |
Less |
Number |
1 u |
1 u |
|
Value |
$7 |
$3 |
|
Total value |
7 u |
3 u |
$8 |
(a)
Price of one Geography book
= 2 x 5 - 7
= 10 - 7
= $3
Amount that Raeann paid less for Geography books than Literature books
= 7 u - 3 u
= 4 u
4 u = 8
1 u = 8 ÷ 4 = 2
Number of Literature books that Raeann bought
= 1 u
= 2
Answer(s): (a) $3; (b) 2