PSLE A bag contains beads of three different colours.
14 of the beads are yellow. The ratio of the number of orange beads to that of blue beads is 5 : 2. What is the ratio of the number of yellow beads to that of blue beads?
Yellow |
Orange |
Blue |
Total |
1x7 |
3x7 |
4x7 |
|
5x3 |
2x3 |
|
7 u |
15 u |
6 u |
28 u |
The total number of blue and orange beads is the combined repeated identity.
Make the total number blue and orange beads the same.
LCM of 3 and 7 = 21
Yellow : Blue
7 : 6
Answer(s): 7 : 6