PSLE Opal has a number of staplers in three colours: green, red and brown.
34 of the staplers are green. The number of green staplers is four times the number of red staplers. What fraction of the staplers is brown?
Green |
Red |
Brown |
Total |
3x4 |
1x4 |
4x4 |
4x3 |
1x3 |
|
|
12 u |
3 u |
1 u |
16 u |
Number of green staplers is the repeated identity.
Make the number of green staplers the same.
LCM of 3 and 4 = 12
Number of brown staplers
= 16 u - 12 u - 3 u
= 1 u
Fraction of the staplers that is brown
=
116 Answer(s):
116