Hazel had an equal number of tomatoes and avocados at first. She sold one-third of the avocados and bought another 72 tomatoes. In the end, she had thrice as many tomatoes as avocados. Find the number of avocados she had at first.
| |
Avocados |
Tomatoes |
| Before |
3 u |
6 u - 72 |
| Change |
- 1 u |
+ 72 |
| After |
2 u |
6 u |
The number of tomatoes and avocados at first is the same.
6 u - 72 = 3 u
6 u - 3 u = 72
3 u = 72
1 u = 72 ÷ 3 = 24
Number of avocados that she had at first
= 3 u
= 3 x 24
= 72
Answer(s): 72
