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