A box contains some pink, purple and grey sweets. The ratio of the number of pink sweets to the number of purple sweets is 4 : 7. The ratio of the number of purple sweets to the number of grey sweets is also 4 : 7. What is the ratio of the number of pink sweets to the number of grey sweets in the box?
Pink |
Purple |
Grey |
4x4 |
7x4 |
|
|
4x7 |
7x7 |
16 u |
28 u |
49 u |
The number of purple sweets is the repeated identity.
LCM of 4 and 7 = 28
Pink sweets : Grey sweets
16 : 49
Answer(s): 16 : 49