PSLE Yen has a number of staplers in three colours: green, purple and yellow.
19 of the staplers are green. The number of green staplers is thrice the number of purple staplers. What fraction of the staplers is yellow?
Green |
Purple |
Yellow |
Total |
1x3 |
8x3 |
9x3 |
3x1 |
1x1 |
|
|
3 u |
1 u |
23 u |
27 u |
Number of green staplers is the repeated identity.
Make the number of green staplers the same.
LCM of 1 and 3 = 3
Number of yellow staplers
= 27 u - 3 u - 1 u
= 23 u
Fraction of the staplers that is yellow
=
2327 Answer(s):
2327