A store owner had the same number of guavas, kiwis and mangoes at first. After 112 mangoes, some guavas and kiwis were sold, there were 186 fruits left. There were four times as many guavas as kiwis left. The number of mangoes left was 30 less than the number of guavas. How many kiwis were sold?
| |
Guavas |
Kiwis |
Mangoes |
Total |
| Before |
1 |
1 |
1 |
|
| Change |
- ? |
- ? |
- 112 |
|
| After |
4 u |
1 u |
4 u - 30 |
186 |
Total number of fruits in the end
= 4 u + 1 u + 4 u - 30
= 9 u - 30
9 u - 30 = 186
9 u = 186 + 30
9 u = 216
1 u = 216 ÷ 9 = 24
Number of mangoes at first
= 4 u - 30 + 112
= 4 x 24 - 30 + 112
= 96 - 30 + 112
= 178
The number of kiwis and mangoes at first was the same.
Number of kiwis sold
= 178 - 1 u
= 178 - 24
= 154
Answer(s): 154
