PSLE Pamela has a number of pens in three colours: green, yellow and orange.
17 of the pens are green. The number of green pens is twice the number of yellow pens. What fraction of the pens is orange?
Green |
Yellow |
Orange |
Total |
1x2 |
6x2 |
7x2 |
2x1 |
1x1 |
|
|
2 u |
1 u |
11 u |
14 u |
Number of green pens is the repeated identity.
Make the number of green pens the same.
LCM of 1 and 2 = 2
Number of orange pens
= 14 u - 2 u - 1 u
= 11 u
Fraction of the pens that is orange
=
1114 Answer(s):
1114