PSLE At first, Emily had an equal number of orange and silver marbles . She gave away
34 of her orange marbles and some silver marbles. In the end, she was left with
35 of her marbles. What fraction of the silver marbles was Emily left with?
|
Orange |
Silver |
Total |
Comparing orange marbles and silver 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 orange marbles at first is repeated. Make the number of orange 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 silver marbles that Emily was left with
= 24 u - 5 u
= 19 u
Fraction of the silver marbles that Emily was left with =
1920 Answer(s):
1920