PSLE Rachel had 46 post-it notes and Marion had 10 post-it notes. After Rachel gave some of her post-it notes to Marion, the number of post-it notes Rachel and Marion had was in the ratio 2 : 5. How many post-it notes did Marion have in the end?
|
Rachel |
Marion |
Total |
Before |
46 |
10 |
56 |
Change |
- ? |
+ ? |
|
After |
2 u |
5 u |
7 u |
Total number of post-it notes
= 46 + 10
= 56
Total number of post-it notes
= 2 u + 5 u
= 7 u
7 u = 56
1 u = 56 ÷ 7 = 8
Number of post-it notes that Marion had in the end
= 5 u
= 5 x 8
= 40
Answer(s): 40