PSLE Marion has a number of markers in three colours: red, green and brown.
58 of the markers are red. The number of red markers is twice the number of green markers. What fraction of the markers is brown?
Red |
Green |
Brown |
Total |
5x2 |
3x2 |
8x2 |
2x5 |
1x5 |
|
|
10 u |
5 u |
1 u |
16 u |
Number of red markers is the repeated identity.
Make the number of red markers the same.
LCM of 5 and 2 = 10
Number of brown markers
= 16 u - 10 u - 5 u
= 1 u
Fraction of the markers that is brown
=
116 Answer(s):
116