PSLE A bag contains beads of three different colours.
16 of the beads are blue. The ratio of the number of purple beads to that of green beads is 1 : 5. What is the ratio of the number of blue beads to that of green beads?
Blue |
Purple |
Green |
Total |
1x6 |
5x6 |
6x6 |
|
1x5 |
5x5 |
|
6 u |
5 u |
25 u |
36 u |
The total number of green and purple beads is the combined repeated identity.
Make the total number green and purple beads the same.
LCM of 5 and 6 = 30
Blue : Green
6 : 25
Answer(s): 6 : 25