PSLE A bag contains beads of three different colours.
16 of the beads are brown. The ratio of the number of yellow beads to that of red beads is 9 : 1. What is the ratio of the number of yellow beads to that of brown beads?
Brown |
Yellow |
Red |
Total |
1x2 |
5x2 |
6x2 |
|
9x1 |
1x1 |
|
2 u |
9 u |
1 u |
12 u |
The total number of red and yellow beads is the combined repeated identity.
Make the total number red and yellow beads the same.
LCM of 5 and 10 = 10
Yellow : Brown
9 : 2
Answer(s): 9 : 2