PSLE Olivia had 69 paperclips and Min had 36 paperclips. After Olivia gave some of her paperclips to Min, the number of paperclips Olivia and Min had was in the ratio 3 : 4. How many paperclips did Olivia have in the end?
|
Olivia |
Min |
Total |
Before |
69 |
36 |
105 |
Change |
- ? |
+ ? |
|
After |
3 u |
4 u |
7 u |
Total number of paperclips
= 69 + 36
= 105
Total number of paperclips
= 3 u + 4 u
= 7 u
7 u = 105
1 u = 105 ÷ 7 = 15
Number of paperclips that Olivia had in the end
= 3 u
= 3 x 15
= 45
Answer(s): 45