PSLEA fruit seller had an equal number of guavas, pears and mangosteens at first. After 74 mangosteens, some guavas and pears were sold, there were 181 fruits left. There were 3 times as many guavas as pears left. The number of mangosteens left was 15 less than the number of guavas left. How many pears were sold?
|
Guavas |
Pears |
Mangosteens |
Total |
Before |
1 |
1 |
1 |
|
Change |
- ? |
- ? |
- 74 |
|
After |
3 u |
1 u |
3 u - 15 |
181 |
Total number of fruits in the end
= 3 u + 1 u + 3 u - 15
= 7 u - 15
7 u - 15 = 181
7 u = 181 + 15
7 u = 196
1 u = 196 ÷ 7 = 28
Number of mangosteens at first
= 3 u - 15 + 74
= 3 x 28 + 59
= 143
The number of mangosteens and pears at first is the same.
Number of pears sold
= 143 - 28
= 115
Answer(s): 115