PSLE A bag contains erasers of three different colours.
112 of the erasers are green. The ratio of the number of red erasers to that of orange erasers is 1 : 1. What is the ratio of the number of red erasers to that of green erasers?
Green |
Red |
Orange |
Total |
1x2 |
11x2 |
12x2 |
|
1x11 |
1x11 |
|
2 u |
11 u |
11 u |
24 u |
The total number of orange and red erasers is the combined repeated identity.
Make the total number orange and red erasers the same.
LCM of 11 and 2 = 22
Red : Green
11 : 2
Answer(s): 11 : 2