A box contains some purple, grey and brown lollipops. The ratio of the number of purple lollipops to the number of grey lollipops is 7 : 5. The ratio of the number of grey lollipops to the number of brown lollipops is also 7 : 5. What is the ratio of the number of purple lollipops to the number of brown lollipops in the box?
Purple |
Grey |
Brown |
7x7 |
5x7 |
|
|
7x5 |
5x5 |
49 u |
35 u |
25 u |
The number of grey lollipops is the repeated identity.
LCM of 7 and 5 = 35
Purple lollipops : Brown lollipops
49 : 25
Answer(s): 49 : 25