Joelle had an equal number of dates and grapefruits at first. She sold one-quarter of the grapefruits and bought another 38 dates. In the end, she had twice as many dates as grapefruits. Find the number of grapefruits she had at first.
| |
Grapefruits |
Dates |
| Before |
4 u |
6 u - 38 |
| Change |
- 1 u |
+ 38 |
| After |
3 u |
6 u |
The number of dates and grapefruits at first is the same.
6 u - 38 = 4 u
6 u - 4 u = 38
2 u = 38
1 u = 38 ÷ 2 = 19
Number of grapefruits that she had at first
= 4 u
= 4 x 19
= 76
Answer(s): 76
