A fruit seller had the same number of chikoos, mangosteens and kiwis at first. After 60 kiwis, some chikoos and mangosteens were removed, there were 126 fruits left. There were four times as many chikoos as mangosteens left. The number of kiwis left was 18 less than the number of chikoos. How many mangosteens were removed?
| |
Chikoos |
Mangosteens |
Kiwis |
Total |
| Before |
1 |
1 |
1 |
|
| Change |
- ? |
- ? |
- 60 |
|
| After |
4 u |
1 u |
4 u - 18 |
126 |
Total number of fruits in the end
= 4 u + 1 u + 4 u - 18
= 9 u - 18
9 u - 18 = 126
9 u = 126 + 18
9 u = 144
1 u = 144 ÷ 9 = 16
Number of kiwis at first
= 4 u - 18 + 60
= 4 x 16 - 18 + 60
= 64 - 18 + 60
= 106
The number of mangosteens and kiwis at first was the same.
Number of mangosteens removed
= 106 - 1 u
= 106 - 16
= 90
Answer(s): 90
