PSLE Lynn had 47 bookmarks and Raeann had 23 bookmarks. After Lynn gave some of her bookmarks to Raeann, the number of bookmarks Lynn and Raeann had was in the ratio 2 : 3. How many bookmarks did Raeann have in the end?
|
Lynn |
Raeann |
Total |
Before |
47 |
23 |
70 |
Change |
- ? |
+ ? |
|
After |
2 u |
3 u |
5 u |
Total number of bookmarks
= 47 + 23
= 70
Total number of bookmarks
= 2 u + 3 u
= 5 u
5 u = 70
1 u = 70 ÷ 5 = 14
Number of bookmarks that Raeann had in the end
= 3 u
= 3 x 14
= 42
Answer(s): 42