PSLE Raeann has a number of pens in three colours: yellow, brown and purple.
58 of the pens are yellow. The number of yellow pens is twice the number of brown pens. What fraction of the pens is purple?
Yellow |
Brown |
Purple |
Total |
5x2 |
3x2 |
8x2 |
2x5 |
1x5 |
|
|
10 u |
5 u |
1 u |
16 u |
Number of yellow pens is the repeated identity.
Make the number of yellow pens the same.
LCM of 5 and 2 = 10
Number of purple pens
= 16 u - 10 u - 5 u
= 1 u
Fraction of the pens that is purple
=
116 Answer(s):
116