PSLE Penelope has a number of markers in three colours: red, green and yellow.
59 of the markers are red. The number of red markers is four times the number of green markers. What fraction of the markers is yellow?
Red |
Green |
Yellow |
Total |
5x4 |
4x4 |
9x4 |
4x5 |
1x5 |
|
|
20 u |
5 u |
11 u |
36 u |
Number of red markers is the repeated identity.
Make the number of red markers the same.
LCM of 5 and 4 = 20
Number of yellow markers
= 36 u - 20 u - 5 u
= 11 u
Fraction of the markers that is yellow
=
1136 Answer(s):
1136