PSLE Pamela has a number of markers in three colours: red, brown and green.
12 of the markers are red. The number of red markers is twice the number of brown markers. What fraction of the markers is green?
Red |
Brown |
Green |
Total |
1x2 |
1x2 |
2x2 |
2x1 |
1x1 |
|
|
2 u |
1 u |
1 u |
4 u |
Number of red markers is the repeated identity.
Make the number of red markers the same.
LCM of 1 and 2 = 2
Number of green markers
= 4 u - 2 u - 1 u
= 1 u
Fraction of the markers that is green
=
14 Answer(s):
14