PSLE Dana has a number of files in three colours: green, blue and brown.
16 of the files are green. The number of green files is four times the number of blue files. What fraction of the files is brown?
Green |
Blue |
Brown |
Total |
1x4 |
5x4 |
6x4 |
4x1 |
1x1 |
|
|
4 u |
1 u |
19 u |
24 u |
Number of green files is the repeated identity.
Make the number of green files the same.
LCM of 1 and 4 = 4
Number of brown files
= 24 u - 4 u - 1 u
= 19 u
Fraction of the files that is brown
=
1924 Answer(s):
1924