PSLE Dana had 55 paperclips and Zara had 25 paperclips. After Dana gave some of her paperclips to Zara, the number of paperclips Dana and Zara had was in the ratio 3 : 5. How many paperclips did Dana have in the end?
|
Dana |
Zara |
Total |
Before |
55 |
25 |
80 |
Change |
- ? |
+ ? |
|
After |
3 u |
5 u |
8 u |
Total number of paperclips
= 55 + 25
= 80
Total number of paperclips
= 3 u + 5 u
= 8 u
8 u = 80
1 u = 80 ÷ 8 = 10
Number of paperclips that Dana had in the end
= 3 u
= 3 x 10
= 30
Answer(s): 30