Question: 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.
Answer: 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. The answer is 14.

Question: Tom decides to get a new floor for his room. It cost $50 to remove the floor. The new floor costs $1.25 per square foot and Tom's room is 8*7 feet. How much did it cost to replace the floor?
Answer: The room is 8 * 7 = 56 square feet. So the new carpet cost 56 * 1.25 = $70. So the total cost was 50 + 70 = $120. The answer is 120.

Question: Ben has 20 eggs in the fridge. Yesterday, he ate 4 eggs in the morning and 3 in the afternoon. How many eggs does Ben have now?
Answer: Ben ate 4 + 3 = 7 eggs yesterday. So he will have left 20 - 7 = 13 eggs. The answer is 13.

Question: Dale and Andrew had breakfast at a cafe. A slice of toast costs £1, and eggs cost £3 each. Dale had 2 slices of toast and 2 eggs. Andrew had 1 slice of toast and 2 eggs. How much did their breakfast cost?
Answer:
The cost of Dale's toast is 2 × $1 = $2. The cost of Andrew's toast is 1 × $1 = $1. The cost of Dale's eggs is 2 × $3 = $6. The cost of Andrew's eggs is 2 × $3 = $6. Their breakfast cost $2 + $1 + $6 + $6 = $15. The answer is 15.