PSLE Yoko has a number of staplers in three colours: green, blue and brown.
12 of the staplers are green. The number of green staplers is twice the number of blue staplers. What fraction of the staplers is brown?
Green |
Blue |
Brown |
Total |
1x2 |
1x2 |
2x2 |
2x1 |
1x1 |
|
|
2 u |
1 u |
1 u |
4 u |
Number of green staplers is the repeated identity.
Make the number of green staplers the same.
LCM of 1 and 2 = 2
Number of brown staplers
= 4 u - 2 u - 1 u
= 1 u
Fraction of the staplers that is brown
=
14 Answer(s):
14