PSLE Shannon has a number of notebooks in three colours: blue, brown and green.
411 of the notebooks are blue. The number of blue notebooks is thrice the number of brown notebooks. What fraction of the notebooks is green?
Blue |
Brown |
Green |
Total |
4x3 |
7x3 |
11x3 |
3x4 |
1x4 |
|
|
12 u |
4 u |
17 u |
33 u |
Number of blue notebooks is the repeated identity.
Make the number of blue notebooks the same.
LCM of 4 and 3 = 12
Number of green notebooks
= 33 u - 12 u - 4 u
= 17 u
Fraction of the notebooks that is green
=
1733 Answer(s):
1733