PSLEA stallholder had the same number of peaches, dragonfruits and lemons at first. After 80 lemons, some peaches and dragonfruits were sold, there were 157 fruits left. There were 3 times as many peaches as dragonfruits left. The number of lemons left was 25 less than the number of peaches left. How many dragonfruits were sold?
|
Peaches |
Dragonfruits |
Lemons |
Total |
Before |
1 |
1 |
1 |
|
Change |
- ? |
- ? |
- 80 |
|
After |
3 u |
1 u |
3 u - 25 |
157 |
Total number of fruits in the end
= 3 u + 1 u + 3 u - 25
= 7 u - 25
7 u - 25 = 157
7 u = 157 + 25
7 u = 182
1 u = 182 ÷ 7 = 26
Number of lemons at first
= 3 u - 25 + 80
= 3 x 26 + 55
= 133
The number of lemons and dragonfruits at first is the same.
Number of dragonfruits sold
= 133 - 26
= 107
Answer(s): 107