PSLE Elyse has a number of markers in three colours: purple, brown and orange.
611 of the markers are purple. The number of purple markers is thrice the number of brown markers. What fraction of the markers is orange?
Purple |
Brown |
Orange |
Total |
6x1 |
5x1 |
11x1 |
3x2 |
1x2 |
|
|
6 u |
2 u |
3 u |
11 u |
Number of purple markers is the repeated identity.
Make the number of purple markers the same.
LCM of 6 and 3 = 6
Number of orange markers
= 11 u - 6 u - 2 u
= 3 u
Fraction of the markers that is orange
=
311 Answer(s):
311