PSLE Betty had 67 paperclips and Irene had 24 paperclips. After Betty gave some of her paperclips to Irene, the number of paperclips Betty and Irene had was in the ratio 2 : 5. How many paperclips did Betty have in the end?
|
Betty |
Irene |
Total |
Before |
67 |
24 |
91 |
Change |
- ? |
+ ? |
|
After |
2 u |
5 u |
7 u |
Total number of paperclips
= 67 + 24
= 91
Total number of paperclips
= 2 u + 5 u
= 7 u
7 u = 91
1 u = 91 ÷ 7 = 13
Number of paperclips that Betty had in the end
= 2 u
= 2 x 13
= 26
Answer(s): 26