PSLE Jane has a number of pencils in three colours: orange, purple and blue.
34 of the pencils are orange. The number of orange pencils is four times the number of purple pencils. What fraction of the pencils is blue?
Orange |
Purple |
Blue |
Total |
3x4 |
1x4 |
4x4 |
4x3 |
1x3 |
|
|
12 u |
3 u |
1 u |
16 u |
Number of orange pencils is the repeated identity.
Make the number of orange pencils the same.
LCM of 3 and 4 = 12
Number of blue pencils
= 16 u - 12 u - 3 u
= 1 u
Fraction of the pencils that is blue
=
116 Answer(s):
116