PSLE Jen has a number of files in three colours: brown, purple and yellow.
12 of the files are brown. The number of brown files is twice the number of purple files. What fraction of the files is yellow?
Brown |
Purple |
Yellow |
Total |
1x2 |
1x2 |
2x2 |
2x1 |
1x1 |
|
|
2 u |
1 u |
1 u |
4 u |
Number of brown files is the repeated identity.
Make the number of brown files the same.
LCM of 1 and 2 = 2
Number of yellow files
= 4 u - 2 u - 1 u
= 1 u
Fraction of the files that is yellow
=
14 Answer(s):
14