Gwen had an equal number of dragonfruits and lemons at first. She sold one-fifth of the lemons and bought another 22 dragonfruits. In the end, she had four times as many dragonfruits as lemons. Find the number of lemons she had at first.
| |
Dragonfruits |
Lemons |
| Before |
16 u - 22 |
5 u |
| Change |
+ 22 |
- 1 u |
| After |
16 u |
4 u |
The number of dragonfruits and lemons at first is the same.
16 u - 22 = 5 u
16 u - 5 u = 22
11 u = 22
1 u = 22 ÷ 11 = 2
Number of lemons that Gwen had at first
= 5 u
= 5 x 2
= 10
Answer(s): 10
