PSLE A bag contains marbles of three different colours.
19 of the marbles are brown. The ratio of the number of purple marbles to that of yellow marbles is 1 : 2. What is the ratio of the number of brown marbles to that of yellow marbles?
Brown |
Purple |
Yellow |
Total |
1x3 |
8x3 |
9x3 |
|
1x8 |
2x8 |
|
3 u |
8 u |
16 u |
27 u |
The total number of yellow and purple marbles is the combined repeated identity.
Make the total number yellow and purple marbles the same.
LCM of 8 and 3 = 24
Brown : Yellow
3 : 16
Answer(s): 3 : 16