PSLE A bag contains beads of three different colours.
14 of the beads are orange. The ratio of the number of brown beads to that of red beads is 6 : 1. What is the ratio of the number of brown beads to that of orange beads?
Orange |
Brown |
Red |
Total |
1x7 |
3x7 |
4x7 |
|
6x3 |
1x3 |
|
7 u |
18 u |
3 u |
28 u |
The total number of red and brown beads is the combined repeated identity.
Make the total number red and brown beads the same.
LCM of 3 and 7 = 21
Brown : Orange
18 : 7
Answer(s): 18 : 7