PSLE Neave kept his green and brown stars in two boxes. The ratio of the number of green to brown stars in the first box was 1 : 8 and it was 1 : 2 in the second box. The two boxes contained the same number of stars. What fraction of Neave's stars were green stars?
First box |
Second box |
1x9 9 u |
1x9 9 u |
9x1 |
3x3 |
Green |
Brown |
Green |
Brown |
1x1 |
8x1 |
1x3 |
2x3 |
1 u |
8 u |
3 u |
6 u |
The total number of stars in the first box and the second box is the same. Make the total number of stars in each box the same. LCM of 9 and 3 is 9.
Total number of green stars
= 1 u + 3 u
= 4 u
Total number of stars
= 9 u + 9 u
= 18 u
Fraction of Neave's stars that were green stars
=
418 =
29 Answer(s):
29