PSLE Yoko had 54 post-it notes and Nora had 26 post-it notes. After Yoko gave some of her post-it notes to Nora, the number of post-it notes Yoko and Nora had was in the ratio 3 : 5. How many post-it notes did Yoko have in the end?
|
Yoko |
Nora |
Total |
Before |
54 |
26 |
80 |
Change |
- ? |
+ ? |
|
After |
3 u |
5 u |
8 u |
Total number of post-it notes
= 54 + 26
= 80
Total number of post-it notes
= 3 u + 5 u
= 8 u
8 u = 80
1 u = 80 ÷ 8 = 10
Number of post-it notes that Yoko had in the end
= 3 u
= 3 x 10
= 30
Answer(s): 30