PSLE Zoe has a number of notebooks in three colours: red, yellow and green.
29 of the notebooks are red. The number of red notebooks is thrice the number of yellow notebooks. What fraction of the notebooks is green?
Red |
Yellow |
Green |
Total |
2x3 |
7x3 |
9x3 |
3x2 |
1x2 |
|
|
6 u |
2 u |
19 u |
27 u |
Number of red notebooks is the repeated identity.
Make the number of red notebooks the same.
LCM of 2 and 3 = 6
Number of green notebooks
= 27 u - 6 u - 2 u
= 19 u
Fraction of the notebooks that is green
=
1927 Answer(s):
1927