PSLE Eva had 80 bookmarks and Diana had 32 bookmarks. After Eva gave some of her bookmarks to Diana, the number of bookmarks Eva and Diana had was in the ratio 3 : 5. How many bookmarks did Eva have in the end?
|
Eva |
Diana |
Total |
Before |
80 |
32 |
112 |
Change |
- ? |
+ ? |
|
After |
3 u |
5 u |
8 u |
Total number of bookmarks
= 80 + 32
= 112
Total number of bookmarks
= 3 u + 5 u
= 8 u
8 u = 112
1 u = 112 ÷ 8 = 14
Number of bookmarks that Eva had in the end
= 3 u
= 3 x 14
= 42
Answer(s): 42