PSLE Marion had 47 paperclips and Erika had 16 paperclips. After Marion gave some of her paperclips to Erika, the number of paperclips Marion and Erika had was in the ratio 3 : 4. How many paperclips did Erika have in the end?
|
Marion |
Erika |
Total |
Before |
47 |
16 |
63 |
Change |
- ? |
+ ? |
|
After |
3 u |
4 u |
7 u |
Total number of paperclips
= 47 + 16
= 63
Total number of paperclips
= 3 u + 4 u
= 7 u
7 u = 63
1 u = 63 ÷ 7 = 9
Number of paperclips that Erika had in the end
= 4 u
= 4 x 9
= 36
Answer(s): 36