PSLE Kathy has a number of staplers in three colours: blue, orange and green.
23 of the staplers are blue. The number of blue staplers is thrice the number of orange staplers. What fraction of the staplers is green?
Blue |
Orange |
Green |
Total |
2x3 |
1x3 |
3x3 |
3x2 |
1x2 |
|
|
6 u |
2 u |
1 u |
9 u |
Number of blue staplers is the repeated identity.
Make the number of blue staplers the same.
LCM of 2 and 3 = 6
Number of green staplers
= 9 u - 6 u - 2 u
= 1 u
Fraction of the staplers that is green
=
19 Answer(s):
19