PSLE Tiffany had 49 paperclips and Betty had 32 paperclips. After Tiffany gave some of her paperclips to Betty, the number of paperclips Tiffany and Betty had was in the ratio 4 : 5. How many paperclips did Tiffany have in the end?
|
Tiffany |
Betty |
Total |
Before |
49 |
32 |
81 |
Change |
- ? |
+ ? |
|
After |
4 u |
5 u |
9 u |
Total number of paperclips
= 49 + 32
= 81
Total number of paperclips
= 4 u + 5 u
= 9 u
9 u = 81
1 u = 81 ÷ 9 = 9
Number of paperclips that Tiffany had in the end
= 4 u
= 4 x 9
= 36
Answer(s): 36