PSLE Raeann has a number of notebooks in three colours: green, blue and red.
58 of the notebooks are green. The number of green notebooks is four times the number of blue notebooks. What fraction of the notebooks is red?
Green |
Blue |
Red |
Total |
5x4 |
3x4 |
8x4 |
4x5 |
1x5 |
|
|
20 u |
5 u |
7 u |
32 u |
Number of green notebooks is the repeated identity.
Make the number of green notebooks the same.
LCM of 5 and 4 = 20
Number of red notebooks
= 32 u - 20 u - 5 u
= 7 u
Fraction of the notebooks that is red
=
732 Answer(s):
732