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