Eva had an equal number of apricots and grapefruits at first. She sold one-third of the grapefruits and bought another 60 apricots. In the end, she had thrice as many apricots as grapefruits. Find the number of grapefruits she had at first.
| |
Grapefruits |
Apricots |
| Before |
3 u |
6 u - 60 |
| Change |
- 1 u |
+ 60 |
| After |
2 u |
6 u |
The number of apricots and grapefruits at first is the same.
6 u - 60 = 3 u
6 u - 3 u = 60
3 u = 60
1 u = 60 ÷ 3 = 20
Number of grapefruits that she had at first
= 3 u
= 3 x 20
= 60
Answer(s): 60
