PSLE Tina has a number of notebooks in three colours: purple, green and orange.
37 of the notebooks are purple. The number of purple notebooks is twice the number of green notebooks. What fraction of the notebooks is orange?
Purple |
Green |
Orange |
Total |
3x2 |
4x2 |
7x2 |
2x3 |
1x3 |
|
|
6 u |
3 u |
5 u |
14 u |
Number of purple notebooks is the repeated identity.
Make the number of purple notebooks the same.
LCM of 3 and 2 = 6
Number of orange notebooks
= 14 u - 6 u - 3 u
= 5 u
Fraction of the notebooks that is orange
=
514 Answer(s):
514