PSLE At first, Gabby had an equal number of pink and green marbles . She gave away
34 of her pink marbles and some green marbles. In the end, she was left with
35 of her marbles. What fraction of the green marbles was Gabby left with?
|
Pink |
Green |
Total |
Comparing pink marbles and green marbles at first |
1x4x5 = 20 u |
1x4x5 = 20 u |
2x4x5 = 40 u |
Before |
4x5 = 20 u |
20 u |
5x8 = 40 u |
Change |
- 3x5 = - 15 u |
- 1 u |
- 3x8 = - 16 u |
After |
1x5 = 5 u |
19 u |
2x8 = 24 u |
The number of pink marbles at first is repeated. Make the number of pink marbles the first the same. LCM of 4 and 1 is 4.
The total number of marbles at first is repeated. Make the total number of marbles at first the same. LCM of 8 and 5 is 40.
Number of green marbles that Gabby was left with
= 24 u - 5 u
= 19 u
Fraction of the green marbles that Gabby was left with =
1920 Answer(s):
1920