PSLE Hazel has a number of pens in three colours: orange, yellow and green.
38 of the pens are orange. The number of orange pens is twice the number of yellow pens. What fraction of the pens is green?
Orange |
Yellow |
Green |
Total |
3x2 |
5x2 |
8x2 |
2x3 |
1x3 |
|
|
6 u |
3 u |
7 u |
16 u |
Number of orange pens is the repeated identity.
Make the number of orange pens the same.
LCM of 3 and 2 = 6
Number of green pens
= 16 u - 6 u - 3 u
= 7 u
Fraction of the pens that is green
=
716 Answer(s):
716