PSLE Bryan kept notebooks in boxes Q and R. Box Q contained thrice as many notebooks as box R. In box Q,
15 of the notebooks were purple notebooks. In box R,
14 of the notebooks were purple notebooks. What fraction of Bryan's notebooks were purple notebooks?
Box Q |
Box R |
Total |
3x4x5 |
1x4x5 |
4x4x5 |
P |
Not purple |
P |
Not purple |
|
1x12 |
4x12 |
1x1x5 |
3x1x5 |
|
12 u |
48 u |
5 u |
15 u |
80 u |
LCM of 5 and 12 is 60.
Number of purple notebooks
= 12 u + 5 u
= 17 u
Total number of notebooks = 80 u
Fraction of Bryan's notebooks that were purple =
1780 Answer(s):
1780