A box contains some white, pink and purple mini cupcakes. The ratio of the number of white mini cupcakes to the number of pink mini cupcakes is 1 : 9. The ratio of the number of pink mini cupcakes to the number of purple mini cupcakes is also 1 : 9. What is the ratio of the number of white mini cupcakes to the number of purple mini cupcakes in the box?
White |
Pink |
Purple |
1x1 |
9x1 |
|
|
1x9 |
9x9 |
1 u |
9 u |
81 u |
The number of pink mini cupcakes is the repeated identity.
LCM of 1 and 9 = 9
White mini cupcakes : Purple mini cupcakes
1 : 81
Answer(s): 1 : 81