Barbara had an equal number of starfruits and mangosteens at first. She sold half of the mangosteens and bought another 28 starfruits. In the end, she had six times as many starfruits as mangosteens. Find the number of mangosteens she had at first.
| |
Starfruits |
Mangosteens |
| Before |
6 u - 28 |
2 u |
| Change |
+ 28 |
- 1 u |
| After |
6 u |
1 u |
The number of starfruits and mangosteens at first is the same.
6 u - 28 = 2 u
6 u - 2 u = 28
4 u = 28
1 u = 28 ÷ 4 = 7
Number of mangosteens that Barbara had at first
= 2 u
= 2 x 7
= 14
Answer(s): 14
