PSLEA store owner had the same number of peaches, starfruits and mangoes at first. After 73 mangoes, some peaches and starfruits were sold, there were 178 fruits left. There were 3 times as many peaches as starfruits left. The number of mangoes left was 18 fewer than the number of peaches left. How many starfruits were sold?
|
Peaches |
Starfruits |
Mangoes |
Total |
Before |
1 |
1 |
1 |
|
Change |
- ? |
- ? |
- 73 |
|
After |
3 u |
1 u |
3 u - 18 |
178 |
Total number of fruits in the end
= 3 u + 1 u + 3 u - 18
= 7 u - 18
7 u - 18 = 178
7 u = 178 + 18
7 u = 196
1 u = 196 ÷ 7 = 28
Number of mangoes at first
= 3 u - 18 + 73
= 3 x 28 + 55
= 139
The number of mangoes and starfruits at first is the same.
Number of starfruits sold
= 139 - 28
= 111
Answer(s): 111