PSLE Irene has a number of notebooks in three colours: orange, yellow and purple.
311 of the notebooks are orange. The number of orange notebooks is four times the number of yellow notebooks. What fraction of the notebooks is purple?
Orange |
Yellow |
Purple |
Total |
3x4 |
8x4 |
11x4 |
4x3 |
1x3 |
|
|
12 u |
3 u |
29 u |
44 u |
Number of orange notebooks is the repeated identity.
Make the number of orange notebooks the same.
LCM of 3 and 4 = 12
Number of purple notebooks
= 44 u - 12 u - 3 u
= 29 u
Fraction of the notebooks that is purple
=
2944 Answer(s):
2944