There were some persimmons, passion fruits and kiwis. The number of persimmons was five times the number of passion fruits. The total number of persimmons and passion fruits was one-quarter of the number of kiwis. There were 180 fruits altogether. All the kiwis were sold at 4 for $11. How much money was collected from the sale of the kiwis?
Number of passion fruits = 1 u
Number of persimmons = 5 u

Total number of passion fruits and persimmons
= 1 u + 5 u
= 6 u

Number of kiwis
= 4 x 6 u
= 24 u

Total number of fruits
= 1 u + 5 u + 24 u
= 30 u

30 u = 180

1 u = 180 ÷ 30 = 6

Number of kiwis sold
= 24 u
= 24 x 6
= 144

Number of sets of 4 kiwis
= 144 ÷ 4
= 36

Amount collected from the sale of kiwis
= 36 x 11
= $396

Answer(s): $396