PSLE At first, Pamela had an equal number of blue and silver marbles . She gave away
23 of her blue marbles and some silver marbles. In the end, she was left with
35 of her marbles. What fraction of the silver marbles was Pamela left with?
|
Blue |
Silver |
Total |
Comparing blue marbles and silver marbles at first |
1x3x5 = 15 u |
1x3x5 = 15 u |
2x3x5 = 30 u |
Before |
3x5 = 15 u |
15 u |
5x6 = 30 u |
Change |
- 2x5 = - 10 u |
- 2 u |
- 3x6 = - 12 u |
After |
1x5 = 5 u |
13 u |
2x6 = 18 u |
The number of blue marbles at first is repeated. Make the number of blue 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 5 is 30.
Number of silver marbles that Pamela was left with
= 18 u - 5 u
= 13 u
Fraction of the silver marbles that Pamela was left with =
1315 Answer(s):
1315