PSLE A bag contains beads of three different colours.
12 of the beads are yellow. The ratio of the number of red beads to that of green beads is 4 : 1. What is the ratio of the number of red beads to that of yellow beads?
Yellow |
Red |
Green |
Total |
1x5 |
1x5 |
2x5 |
|
4x1 |
1x1 |
|
5 u |
4 u |
1 u |
10 u |
The total number of green and red beads is the combined repeated identity.
Make the total number green and red beads the same.
LCM of 1 and 5 = 5
Red : Yellow
4 : 5
Answer(s): 4 : 5