PSLE Abi has a number of staplers in three colours: blue, yellow and red.
17 of the staplers are blue. The number of blue staplers is twice the number of yellow staplers. What fraction of the staplers is red?
Blue |
Yellow |
Red |
Total |
1x2 |
6x2 |
7x2 |
2x1 |
1x1 |
|
|
2 u |
1 u |
11 u |
14 u |
Number of blue staplers is the repeated identity.
Make the number of blue staplers the same.
LCM of 1 and 2 = 2
Number of red staplers
= 14 u - 2 u - 1 u
= 11 u
Fraction of the staplers that is red
=
1114 Answer(s):
1114