<human>:  In a house of 15, 3/5 of the people eat pizza. If Aviana brought pizza with 50 pieces, and each person eating pizza took 4 pieces, calculate the number of pizza pieces that remained.
<bot>: How many people are eating pizza? ** If there are 15 people in the house, the number of people eating pizza is 3/5*15 = <<3/5*15=9>>9 people.
How many pieces were taken? ** If each house member who eats pizza took four pieces to eat, the number of pieces taken is 4*9 = <<4*9=36>>36 pieces.
How many pieces were not taken? ** Since the total number of pieces was 50, the number of pieces not taken is 50-36 = <<50-36=14>>14 pieces.
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