Marion bought some Malay books at $19 each. She also bought an equal number of Japanese books at a different price. The average price of one Malay and one Japanese book was $12. Marion paid $112 less for the Japanese books than the Malay books.
- What was the cost of one Japanese book?
- How many Malay books did Marion buy?
|
Malay |
Japanese |
Less |
Number |
1 u |
1 u |
|
Value |
$19 |
$5 |
|
Total value |
19 u |
5 u |
$112 |
(a)
Price of one Japanese book
= 2 x 12 - 19
= 24 - 19
= $5
Amount that Marion paid less for Japanese books than Malay books
= 19 u - 5 u
= 14 u
14 u = 112
1 u = 112 ÷ 14 = 8
Number of Malay books that Marion bought
= 1 u
= 8
Answer(s): (a) $5; (b) 8