PSLE Xylia has a number of files in three colours: purple, green and orange.
18 of the files are purple. The number of purple files is four times the number of green files. What fraction of the files is orange?
Purple |
Green |
Orange |
Total |
1x4 |
7x4 |
8x4 |
4x1 |
1x1 |
|
|
4 u |
1 u |
27 u |
32 u |
Number of purple files is the repeated identity.
Make the number of purple files the same.
LCM of 1 and 4 = 4
Number of orange files
= 32 u - 4 u - 1 u
= 27 u
Fraction of the files that is orange
=
2732 Answer(s):
2732