Seven hours ago, a store owner started his day with some apples and kiwis in the ratio of 5 : 4. There were 48 kiwis. Some of the apples were bought by Yen. As a result, the number of apples became
56 of the kiwis.
- How many apples did the store owner have left?
- How many apples did the store owner have to buy in order to have an equal number of apples and kiwis?
|
Apples |
Kiwis |
Before |
5x3 = 15 u |
4x3 = 12 u |
Change |
- ? |
|
After |
5x2 = 10 u |
6x2 = 12 u |
(a)
The number of kiwis remains unchanged. Make the number of kiwis the same. LCM of 4 and 6 is 12.
12 u = 48
1 u = 48 ÷ 12 = 4
Number of apples that the store owner had left
= 10 u
= 10 x 4
= 40
(b)
Number of apples that the store owner had to buy to have an equal number of apples and kiwis
= 12 u - 10 u
= 2 u
= 2 x 4
= 8
Answer(s): (a) 40; (b) 8