PSLE Xuan has a number of staplers in three colours: orange, blue and red.
17 of the staplers are orange. The number of orange staplers is four times the number of blue staplers. What fraction of the staplers is red?
Orange |
Blue |
Red |
Total |
1x4 |
6x4 |
7x4 |
4x1 |
1x1 |
|
|
4 u |
1 u |
23 u |
28 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 red staplers
= 28 u - 4 u - 1 u
= 23 u
Fraction of the staplers that is red
=
2328 Answer(s):
2328