PSLE Opal has a number of staplers in three colours: purple, red and brown.
711 of the staplers are purple. The number of purple staplers is four times the number of red staplers. What fraction of the staplers is brown?
Purple |
Red |
Brown |
Total |
7x4 |
4x4 |
11x4 |
4x7 |
1x7 |
|
|
28 u |
7 u |
9 u |
44 u |
Number of purple staplers is the repeated identity.
Make the number of purple staplers the same.
LCM of 7 and 4 = 28
Number of brown staplers
= 44 u - 28 u - 7 u
= 9 u
Fraction of the staplers that is brown
=
944 Answer(s):
944