PSLEA store owner had the same number of starfruits, dragonfruits and persimmons at first. After 56 persimmons, some starfruits and dragonfruits were sold, there were 199 fruits left. There were 2 times as many starfruits as dragonfruits left. The number of persimmons left was 16 less than the number of starfruits left. How many dragonfruits were sold?
|
Starfruits |
Dragonfruits |
Persimmons |
Total |
Before |
1 |
1 |
1 |
|
Change |
- ? |
- ? |
- 56 |
|
After |
2 u |
1 u |
2 u - 16 |
199 |
Total number of fruits in the end
= 2 u + 1 u + 2 u - 16
= 5 u - 16
5 u - 16 = 199
5 u = 199 + 16
5 u = 215
1 u = 215 ÷ 5 = 43
Number of persimmons at first
= 2 u - 16 + 56
= 2 x 43 + 40
= 126
The number of persimmons and dragonfruits at first is the same.
Number of dragonfruits sold
= 126 - 43
= 83
Answer(s): 83