PSLE Cindy had 45 bookmarks and Opal had 19 bookmarks. After Cindy gave some of her bookmarks to Opal, the number of bookmarks Cindy and Opal had was in the ratio 3 : 5. How many bookmarks did Cindy have in the end?
|
Cindy |
Opal |
Total |
Before |
45 |
19 |
64 |
Change |
- ? |
+ ? |
|
After |
3 u |
5 u |
8 u |
Total number of bookmarks
= 45 + 19
= 64
Total number of bookmarks
= 3 u + 5 u
= 8 u
8 u = 64
1 u = 64 ÷ 8 = 8
Number of bookmarks that Cindy had in the end
= 3 u
= 3 x 8
= 24
Answer(s): 24