A box contains some purple, grey and brown caramel apples. The ratio of the number of purple caramel apples to the number of grey caramel apples is 4 : 9. The ratio of the number of grey caramel apples to the number of brown caramel apples is also 4 : 9. What is the ratio of the number of purple caramel apples to the number of brown caramel apples in the box?
Purple |
Grey |
Brown |
4x4 |
9x4 |
|
|
4x9 |
9x9 |
16 u |
36 u |
81 u |
The number of grey caramel apples is the repeated identity.
LCM of 4 and 9 = 36
Purple caramel apples : Brown caramel apples
16 : 81
Answer(s): 16 : 81