PSLE Justin kept pens in boxes B and C. Box B contained four times as many pens as box C. In box B,
14 of the pens were purple pens. In box C,
13 of the pens were purple pens. What fraction of Justin's pens were purple pens?
Box B |
Box C |
Total |
4x3x1 |
1x3x1 |
5x3x1 |
P |
Not purple |
P |
Not purple |
|
1x3 |
3x3 |
1x1x1 |
2x1x1 |
|
3 u |
9 u |
1 u |
2 u |
15 u |
LCM of 4 and 12 is 12.
Number of purple pens
= 3 u + 1 u
= 4 u
Total number of pens = 15 u
Fraction of Justin's pens that were purple =
415 Answer(s):
415