A store owner had the same number of pomegranates, mangoes and lemons at first. After 141 lemons, some pomegranates and mangoes were thrown away, there were 157 fruits left. There were thrice as many pomegranates as mangoes left. The number of lemons left was 39 less than the number of pomegranates. How many mangoes were thrown away?
| |
Pomegranates |
Mangoes |
Lemons |
Total |
| Before |
1 |
1 |
1 |
|
| Change |
- ? |
- ? |
- 141 |
|
| After |
3 u |
1 u |
3 u - 39 |
157 |
Total number of fruits in the end
= 3 u + 1 u + 3 u - 39
= 7 u - 39
7 u - 39 = 157
7 u = 157 + 39
7 u = 196
1 u = 196 ÷ 7 = 28
Number of lemons at first
= 3 u - 39 + 141
= 3 x 28 - 39 + 141
= 84 - 39 + 141
= 186
The number of mangoes and lemons at first was the same.
Number of mangoes thrown away
= 186 - 1 u
= 186 - 28
= 158
Answer(s): 158
