Tiffany had an equal number of peaches and grapefruits at first. She sold two-thirds of the grapefruits and bought another 56 peaches. In the end, she had five times as many peaches as grapefruits. Find the number of grapefruits she had at first.
| |
Grapefruits |
Peaches |
| Before |
3 u |
5 u - 56 |
| Change |
- 2 u |
+ 56 |
| After |
1 u |
5 u |
The number of peaches and grapefruits at first is the same.
5 u - 56 = 3 u
5 u - 3 u = 56
2 u = 56
1 u = 56 ÷ 2 = 28
Number of grapefruits that she had at first
= 3 u
= 3 x 28
= 84
Answer(s): 84
