PSLE Linda has a number of notebooks in three colours: orange, blue and yellow.
59 of the notebooks are orange. The number of orange notebooks is thrice the number of blue notebooks. What fraction of the notebooks is yellow?
Orange |
Blue |
Yellow |
Total |
5x3 |
4x3 |
9x3 |
3x5 |
1x5 |
|
|
15 u |
5 u |
7 u |
27 u |
Number of orange notebooks is the repeated identity.
Make the number of orange notebooks the same.
LCM of 5 and 3 = 15
Number of yellow notebooks
= 27 u - 15 u - 5 u
= 7 u
Fraction of the notebooks that is yellow
=
727 Answer(s):
727