PSLE A bag contains beads of three different colours.
17 of the beads are yellow. The ratio of the number of red beads to that of brown beads is 5 : 3. What is the ratio of the number of yellow beads to that of brown beads?
Yellow |
Red |
Brown |
Total |
1x4 |
6x4 |
7x4 |
|
5x3 |
3x3 |
|
4 u |
15 u |
9 u |
28 u |
The total number of brown and red beads is the combined repeated identity.
Make the total number brown and red beads the same.
LCM of 6 and 8 = 24
Yellow : Brown
4 : 9
Answer(s): 4 : 9