PSLE A bag contains coins of three different colours.
110 of the coins are yellow. The ratio of the number of blue coins to that of orange coins is 2 : 1. What is the ratio of the number of blue coins to that of yellow coins?
Yellow |
Blue |
Orange |
Total |
1x1 |
9x1 |
10x1 |
|
2x3 |
1x3 |
|
1 u |
6 u |
3 u |
10 u |
The total number of orange and blue coins is the combined repeated identity.
Make the total number orange and blue coins the same.
LCM of 9 and 3 = 9
Blue : Yellow
6 : 1
Answer(s): 6 : 1