PSLE A bag contains beads of three different colours.
19 of the beads are brown. The ratio of the number of yellow beads to that of orange beads is 3 : 1. What is the ratio of the number of brown beads to that of orange beads?
Brown |
Yellow |
Orange |
Total |
1x1 |
8x1 |
9x1 |
|
3x2 |
1x2 |
|
1 u |
6 u |
2 u |
9 u |
The total number of orange and yellow beads is the combined repeated identity.
Make the total number orange and yellow beads the same.
LCM of 8 and 4 = 8
Brown : Orange
1 : 2
Answer(s): 1 : 2