PSLE Victoria had 64 post-it notes and Xandra had 13 post-it notes. After Victoria gave some of her post-it notes to Xandra, the number of post-it notes Victoria and Xandra had was in the ratio 3 : 4. How many post-it notes did Xandra have in the end?
|
Victoria |
Xandra |
Total |
Before |
64 |
13 |
77 |
Change |
- ? |
+ ? |
|
After |
3 u |
4 u |
7 u |
Total number of post-it notes
= 64 + 13
= 77
Total number of post-it notes
= 3 u + 4 u
= 7 u
7 u = 77
1 u = 77 ÷ 7 = 11
Number of post-it notes that Xandra had in the end
= 4 u
= 4 x 11
= 44
Answer(s): 44