PSLE Erika has a number of staplers in three colours: yellow, green and red.
27 of the staplers are yellow. The number of yellow staplers is four times the number of green staplers. What fraction of the staplers is red?
Yellow |
Green |
Red |
Total |
2x2 |
5x2 |
7x2 |
4x1 |
1x1 |
|
|
4 u |
1 u |
9 u |
14 u |
Number of yellow staplers is the repeated identity.
Make the number of yellow staplers the same.
LCM of 2 and 4 = 4
Number of red staplers
= 14 u - 4 u - 1 u
= 9 u
Fraction of the staplers that is red
=
914 Answer(s):
914