PSLE At first, Wendy had an equal number of green and gold marbles . She gave away
25 of her green marbles and some gold marbles. In the end, she was left with
35 of her marbles. What fraction of the gold marbles was Wendy left with?
|
Green |
Gold |
Total |
Comparing green marbles and gold marbles at first |
1x5x1 = 5 u |
1x5x1 = 5 u |
2x5x1 = 10 u |
Before |
5x1 = 5 u |
5 u |
5x2 = 10 u |
Change |
- 2x1 = - 2 u |
- 2 u |
- 3x2 = - 4 u |
After |
3x1 = 3 u |
3 u |
2x2 = 6 u |
The number of green marbles at first is repeated. Make the number of green marbles the first the same. LCM of 5 and 1 is 5.
The total number of marbles at first is repeated. Make the total number of marbles at first the same. LCM of 10 and 5 is 10.
Number of gold marbles that Wendy was left with
= 6 u - 3 u
= 3 u
Fraction of the gold marbles that Wendy was left with =
35 Answer(s):
35