PSLE A bag contains coins of three different colours.
112 of the coins are green. The ratio of the number of yellow coins to that of red coins is 3 : 1. What is the ratio of the number of yellow coins to that of green coins?
Green |
Yellow |
Red |
Total |
1x4 |
11x4 |
12x4 |
|
3x11 |
1x11 |
|
4 u |
33 u |
11 u |
48 u |
The total number of red and yellow coins is the combined repeated identity.
Make the total number red and yellow coins the same.
LCM of 11 and 4 = 44
Yellow : Green
33 : 4
Answer(s): 33 : 4