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