PSLE Emma has a number of notebooks in three colours: yellow, purple and orange.
37 of the notebooks are yellow. The number of yellow notebooks is four times the number of purple notebooks. What fraction of the notebooks is orange?
Yellow |
Purple |
Orange |
Total |
3x4 |
4x4 |
7x4 |
4x3 |
1x3 |
|
|
12 u |
3 u |
13 u |
28 u |
Number of yellow notebooks is the repeated identity.
Make the number of yellow notebooks the same.
LCM of 3 and 4 = 12
Number of orange notebooks
= 28 u - 12 u - 3 u
= 13 u
Fraction of the notebooks that is orange
=
1328 Answer(s):
1328