Gabby had an equal number of dates and grapefruits at first. She sold one-third of the grapefruits and bought another 65 dates. In the end, she had four times as many dates as grapefruits. Find the number of grapefruits she had at first.
| |
Grapefruits |
Dates |
| Before |
3 u |
8 u - 65 |
| Change |
- 1 u |
+ 65 |
| After |
2 u |
8 u |
The number of dates and grapefruits at first is the same.
8 u - 65 = 3 u
8 u - 3 u = 65
5 u = 65
1 u = 65 ÷ 5 = 13
Number of grapefruits that she had at first
= 3 u
= 3 x 13
= 39
Answer(s): 39
