PSLE Roshel has a number of pencils in three colours: green, purple and orange.
12 of the pencils are green. The number of green pencils is twice the number of purple pencils. What fraction of the pencils is orange?
Green |
Purple |
Orange |
Total |
1x2 |
1x2 |
2x2 |
2x1 |
1x1 |
|
|
2 u |
1 u |
1 u |
4 u |
Number of green pencils is the repeated identity.
Make the number of green pencils the same.
LCM of 1 and 2 = 2
Number of orange pencils
= 4 u - 2 u - 1 u
= 1 u
Fraction of the pencils that is orange
=
14 Answer(s):
14