PSLE At first, Tammy had an equal number of gold and green beads . She gave away
25 of her gold beads and some green beads. In the end, she was left with
34 of her beads. What fraction of the green beads was Tammy left with?
|
Gold |
Green |
Total |
Comparing gold beads and green beads at first |
1x5x2 = 10 u |
1x5x2 = 10 u |
2x5x2 = 20 u |
Before |
5x2 = 10 u |
10 u |
4x5 = 20 u |
Change |
- 2x2 = - 4 u |
- 1 u |
- 3x5 = - 5 u |
After |
3x2 = 6 u |
9 u |
1x5 = 15 u |
The number of gold beads at first is repeated. Make the number of gold beads the first the same. LCM of 5 and 1 is 5.
The total number of beads at first is repeated. Make the total number of beads at first the same. LCM of 10 and 4 is 20.
Number of green beads that Tammy was left with
= 15 u - 6 u
= 9 u
Fraction of the green beads that Tammy was left with =
910 Answer(s):
910