PSLE Olivia has a number of markers in three colours: orange, yellow and brown.
18 of the markers are orange. The number of orange markers is four times the number of yellow markers. What fraction of the markers is brown?
Orange |
Yellow |
Brown |
Total |
1x4 |
7x4 |
8x4 |
4x1 |
1x1 |
|
|
4 u |
1 u |
27 u |
32 u |
Number of orange markers is the repeated identity.
Make the number of orange markers the same.
LCM of 1 and 4 = 4
Number of brown markers
= 32 u - 4 u - 1 u
= 27 u
Fraction of the markers that is brown
=
2732 Answer(s):
2732