PSLE At first, Jen had an equal number of green and black stickers . She gave away
25 of her green stickers and some black stickers. In the end, she was left with
34 of her stickers. What fraction of the black stickers was Jen left with?
|
Green |
Black |
Total |
Comparing green stickers and black stickers at first |
1x5x2 = 10 u |
1x5x2 = 10 u |
2x5x2 = 20 u |
Before |
5x2 = 10 u |
10 u |
4x5 = 20 u |
Change |
- 2x2 = - 4 u |
- 1 u |
- 3x5 = - 5 u |
After |
3x2 = 6 u |
9 u |
1x5 = 15 u |
The number of green stickers at first is repeated. Make the number of green stickers the first the same. LCM of 5 and 1 is 5.
The total number of stickers at first is repeated. Make the total number of stickers at first the same. LCM of 10 and 4 is 20.
Number of black stickers that Jen was left with
= 15 u - 6 u
= 9 u
Fraction of the black stickers that Jen was left with =
910 Answer(s):
910