PSLE Joelle has a number of notebooks in three colours: red, purple and orange.
16 of the notebooks are red. The number of red notebooks is four times the number of purple notebooks. What fraction of the notebooks is orange?
Red |
Purple |
Orange |
Total |
1x4 |
5x4 |
6x4 |
4x1 |
1x1 |
|
|
4 u |
1 u |
19 u |
24 u |
Number of red notebooks is the repeated identity.
Make the number of red notebooks the same.
LCM of 1 and 4 = 4
Number of orange notebooks
= 24 u - 4 u - 1 u
= 19 u
Fraction of the notebooks that is orange
=
1924 Answer(s):
1924