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