PSLE Elyse has a number of notebooks in three colours: purple, green and yellow.
27 of the notebooks are purple. The number of purple notebooks is four times the number of green notebooks. What fraction of the notebooks is yellow?
Purple |
Green |
Yellow |
Total |
2x2 |
5x2 |
7x2 |
4x1 |
1x1 |
|
|
4 u |
1 u |
9 u |
14 u |
Number of purple notebooks is the repeated identity.
Make the number of purple notebooks the same.
LCM of 2 and 4 = 4
Number of yellow notebooks
= 14 u - 4 u - 1 u
= 9 u
Fraction of the notebooks that is yellow
=
914 Answer(s):
914