PSLEA fruit seller had an equal number of grapefruits, chikoos and starfruits at first. After 47 starfruits, some grapefruits and chikoos were sold, there were 138 fruits left. There were 2 times as many grapefruits as chikoos left. The number of starfruits left was 22 less than the number of grapefruits left. How many chikoos were sold?
|
Grapefruits |
Chikoos |
Starfruits |
Total |
Before |
1 |
1 |
1 |
|
Change |
- ? |
- ? |
- 47 |
|
After |
2 u |
1 u |
2 u - 22 |
138 |
Total number of fruits in the end
= 2 u + 1 u + 2 u - 22
= 5 u - 22
5 u - 22 = 138
5 u = 138 + 22
5 u = 160
1 u = 160 ÷ 5 = 32
Number of starfruits at first
= 2 u - 22 + 47
= 2 x 32 + 25
= 89
The number of starfruits and chikoos at first is the same.
Number of chikoos sold
= 89 - 32
= 57
Answer(s): 57