Olivia had an equal number of peaches and apples at first. She sold one-third of the apples and bought another 50 peaches. In the end, she had four times as many peaches as apples. Find the number of apples she had at first.
| |
Apples |
Peaches |
| Before |
3 u |
8 u - 50 |
| Change |
- 1 u |
+ 50 |
| After |
2 u |
8 u |
The number of peaches and apples at first is the same.
8 u - 50 = 3 u
8 u - 3 u = 50
5 u = 50
1 u = 50 ÷ 5 = 10
Number of apples that she had at first
= 3 u
= 3 x 10
= 30
Answer(s): 30
