PSLE Victoria has a number of notebooks in three colours: red, purple and blue.
23 of the notebooks are red. The number of red notebooks is four times the number of purple notebooks. What fraction of the notebooks is blue?
Red |
Purple |
Blue |
Total |
2x2 |
1x2 |
3x2 |
4x1 |
1x1 |
|
|
4 u |
1 u |
1 u |
6 u |
Number of red notebooks is the repeated identity.
Make the number of red notebooks the same.
LCM of 2 and 4 = 4
Number of blue notebooks
= 6 u - 4 u - 1 u
= 1 u
Fraction of the notebooks that is blue
=
16 Answer(s):
16