PSLE Justin kept pens in boxes A and B. Box A contained four times as many pens as box B. In box A,
13 of the pens were blue pens. In box B,
14 of the pens were blue pens. What fraction of Justin's pens were blue pens?
Box A |
Box B |
Total |
4x4x3 |
1x4x3 |
5x4x3 |
B |
Not blue |
B |
Not blue |
|
1x16 |
2x16 |
1x1x3 |
3x1x3 |
|
16 u |
32 u |
3 u |
9 u |
60 u |
LCM of 3 and 16 is 48.
Number of blue pens
= 16 u + 3 u
= 19 u
Total number of pens = 60 u
Fraction of Justin's pens that were blue =
1960 Answer(s):
1960