PSLE Shannon has a number of files in three colours: purple, blue and brown.
58 of the files are purple. The number of purple files is twice the number of blue files. What fraction of the files is brown?
Purple |
Blue |
Brown |
Total |
5x2 |
3x2 |
8x2 |
2x5 |
1x5 |
|
|
10 u |
5 u |
1 u |
16 u |
Number of purple files is the repeated identity.
Make the number of purple files the same.
LCM of 5 and 2 = 10
Number of brown files
= 16 u - 10 u - 5 u
= 1 u
Fraction of the files that is brown
=
116 Answer(s):
116