PSLE Xuan has a number of files in three colours: green, purple and orange.
512 of the files are green. The number of green files is four times the number of purple files. What fraction of the files is orange?
Green |
Purple |
Orange |
Total |
5x4 |
7x4 |
12x4 |
4x5 |
1x5 |
|
|
20 u |
5 u |
23 u |
48 u |
Number of green files is the repeated identity.
Make the number of green files the same.
LCM of 5 and 4 = 20
Number of orange files
= 48 u - 20 u - 5 u
= 23 u
Fraction of the files that is orange
=
2348 Answer(s):
2348