PSLEA stallholder had the same number of chikoos, starfruits and mangoes at first. After 42 mangoes, some chikoos and starfruits were sold, there were 80 fruits left. There were 2 times as many chikoos as starfruits left. The number of mangoes left was 25 less than the number of chikoos left. How many starfruits were sold?
|
Chikoos |
Starfruits |
Mangoes |
Total |
Before |
1 |
1 |
1 |
|
Change |
- ? |
- ? |
- 42 |
|
After |
2 u |
1 u |
2 u - 25 |
80 |
Total number of fruits in the end
= 2 u + 1 u + 2 u - 25
= 5 u - 25
5 u - 25 = 80
5 u = 80 + 25
5 u = 105
1 u = 105 ÷ 5 = 21
Number of mangoes at first
= 2 u - 25 + 42
= 2 x 21 + 17
= 59
The number of mangoes and starfruits at first is the same.
Number of starfruits sold
= 59 - 21
= 38
Answer(s): 38