PSLE Japheth kept notebooks in boxes C and D. Box C contained twice as many notebooks as box D. In box C,
13 of the notebooks were purple notebooks. In box D,
12 of the notebooks were purple notebooks. What fraction of Japheth's notebooks were purple notebooks?
Box C |
Box D |
Total |
2x2x3 |
1x2x3 |
3x2x3 |
P |
Not purple |
P |
Not purple |
|
1x4 |
2x4 |
1x1x3 |
1x1x3 |
|
4 u |
8 u |
3 u |
3 u |
18 u |
LCM of 3 and 4 is 12.
Number of purple notebooks
= 4 u + 3 u
= 7 u
Total number of notebooks = 18 u
Fraction of Japheth's notebooks that were purple =
718 Answer(s):
718