Natalie had an equal number of mangosteens and plums at first. She sold two-thirds of the plums and bought another 46 mangosteens. In the end, she had five times as many mangosteens as plums. Find the number of plums she had at first.
| |
Plums |
Mangosteens |
| Before |
3 u |
5 u - 46 |
| Change |
- 2 u |
+ 46 |
| After |
1 u |
5 u |
The number of mangosteens and plums at first is the same.
5 u - 46 = 3 u
5 u - 3 u = 46
2 u = 46
1 u = 46 ÷ 2 = 23
Number of plums that she had at first
= 3 u
= 3 x 23
= 69
Answer(s): 69
