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.
Let’s work this out in a step by step way to be sure we have the right answer.
14
If there are 15 people in the house, the number of people eating pizza is 3 / 5 * 15 = 9 people.

If each house member who eats pizza took four pieces to eat, the number of pieces taken is 4 * 9 = 36 pieces.

Since the total number of pieces was 50, the number of pieces not taken is 50 - 36 = 14 pieces.

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Therefore, the answer is 14