PSLE Yoko has a number of notebooks in three colours: red, orange and green.
211 of the notebooks are red. The number of red notebooks is four times the number of orange notebooks. What fraction of the notebooks is green?
Red |
Orange |
Green |
Total |
2x2 |
9x2 |
11x2 |
4x1 |
1x1 |
|
|
4 u |
1 u |
17 u |
22 u |
Number of red notebooks is the repeated identity.
Make the number of red notebooks the same.
LCM of 2 and 4 = 4
Number of green notebooks
= 22 u - 4 u - 1 u
= 17 u
Fraction of the notebooks that is green
=
1722 Answer(s):
1722