PSLE Oliver kept pens in boxes L and M. Box L contained twice as many pens as box M. In box L,
15 of the pens were blue pens. In box M,
14 of the pens were blue pens. What fraction of Oliver's pens were blue pens?
Box L |
Box M |
Total |
2x4x5 |
1x4x5 |
3x4x5 |
B |
Not blue |
B |
Not blue |
|
1x8 |
4x8 |
1x1x5 |
3x1x5 |
|
8 u |
32 u |
5 u |
15 u |
60 u |
LCM of 5 and 8 is 40.
Number of blue pens
= 8 u + 5 u
= 13 u
Total number of pens = 60 u
Fraction of Oliver's pens that were blue =
1360 Answer(s):
1360