There were some lemons, starfruits and pears. The number of lemons was four times the number of starfruits. The total number of lemons and starfruits was half of the number of pears. There were 165 fruits altogether. All the pears were sold at 5 for $8. How much money was collected from the sale of the pears?
Number of starfruits = 1 u
Number of lemons = 4 u

Total number of starfruits and lemons
= 1 u + 4 u
= 5 u

Number of pears
= 2 x 5 u
= 10 u

Total number of fruits
= 1 u + 4 u + 10 u
= 15 u

15 u = 165

1 u = 165 ÷ 15 = 11

Number of pears sold
= 10 u
= 10 x 11
= 110

Number of sets of 5 pears
= 110 ÷ 5
= 22

Amount collected from the sale of pears
= 22 x 8
= $176

Answer(s): $176