PSLE Elyse has a number of staplers in three colours: orange, red and blue.
12 of the staplers are orange. The number of orange staplers is four times the number of red staplers. What fraction of the staplers is blue?
Orange |
Red |
Blue |
Total |
1x4 |
1x4 |
2x4 |
4x1 |
1x1 |
|
|
4 u |
1 u |
3 u |
8 u |
Number of orange staplers is the repeated identity.
Make the number of orange staplers the same.
LCM of 1 and 4 = 4
Number of blue staplers
= 8 u - 4 u - 1 u
= 3 u
Fraction of the staplers that is blue
=
38 Answer(s):
38