PSLE Esther has a number of markers in three colours: orange, blue and purple.
111 of the markers are orange. The number of orange markers is twice the number of blue markers. What fraction of the markers is purple?
Orange |
Blue |
Purple |
Total |
1x2 |
10x2 |
11x2 |
2x1 |
1x1 |
|
|
2 u |
1 u |
19 u |
22 u |
Number of orange markers is the repeated identity.
Make the number of orange markers the same.
LCM of 1 and 2 = 2
Number of purple markers
= 22 u - 2 u - 1 u
= 19 u
Fraction of the markers that is purple
=
1922 Answer(s):
1922