A box contains some pink, purple and grey sweets. The ratio of the number of pink sweets to the number of purple sweets is 9 : 5. The ratio of the number of purple sweets to the number of grey sweets is also 9 : 5. What is the ratio of the number of pink sweets to the number of grey sweets in the box?
Pink |
Purple |
Grey |
9x9 |
5x9 |
|
|
9x5 |
5x5 |
81 u |
45 u |
25 u |
The number of purple sweets is the repeated identity.
LCM of 9 and 5 = 45
Pink sweets : Grey sweets
81 : 25
Answer(s): 81 : 25