PSLE Bryan kept his black and pink buttons in two boxes. The ratio of the number of black to pink buttons in the first box was 1 : 2 and it was 1 : 8 in the second box. The two boxes contained the same number of buttons. What fraction of Bryan's buttons were pink buttons?
First box |
Second box |
1x9 9 u |
1x9 9 u |
3x3 |
9x1 |
Black |
Pink |
Black |
Pink |
1x3 |
2x3 |
1x1 |
8x1 |
3 u |
6 u |
1 u |
8 u |
The total number of buttons in the first box and the second box is the same. Make the total number of buttons in each box the same.
LCM of 3 and 9 is 9.
Total number of pink buttons
= 6 u + 8 u
= 14 u
Total number of buttons
= 9 u + 9 u
= 18 u
Fraction of Bryan's buttons that were pink buttons
=
1418 =
79 Answer(s):
79