PSLE A bag contains coins of three different colours.
17 of the coins are orange. The ratio of the number of yellow coins to that of brown coins is 1 : 1. What is the ratio of the number of orange coins to that of brown coins?
Orange |
Yellow |
Brown |
Total |
1x1 |
6x1 |
7x1 |
|
1x3 |
1x3 |
|
1 u |
3 u |
3 u |
7 u |
The total number of brown and yellow coins is the combined repeated identity.
Make the total number brown and yellow coins the same.
LCM of 6 and 2 = 6
Orange : Brown
1 : 3
Answer(s): 1 : 3