PSLE At first, Julie had an equal number of green and silver marbles . She gave away
23 of her green marbles and some silver marbles. In the end, she was left with
14 of her marbles. What fraction of the silver marbles was Julie left with?
|
Green |
Silver |
Total |
Comparing green marbles and silver marbles at first |
1x3x2 = 6 u |
1x3x2 = 6 u |
2x3x2 = 12 u |
Before |
3x2 = 6 u |
6 u |
4x3 = 12 u |
Change |
- 2x2 = - 4 u |
- 5 u |
- 1x3 = - 9 u |
After |
1x2 = 2 u |
1 u |
3x3 = 3 u |
The number of green marbles at first is repeated. Make the number of green marbles the first the same. LCM of 3 and 1 is 3.
The total number of marbles at first is repeated. Make the total number of marbles at first the same. LCM of 6 and 4 is 12.
Number of silver marbles that Julie was left with
= 3 u - 2 u
= 1 u
Fraction of the silver marbles that Julie was left with =
16 Answer(s):
16