Q: On the island of Castor, there are 40 chess players. A quarter of the island's chess players have never lost to an AI. How many people on the island have lost to a computer, at least once?
A: Chess players that have never lost to an AI is 40 / 4 = 10 people. Chess players that have lost to an AI is 40 - 10 = 30 people. The answer is 30.

Q: A store is comparing their profits throughout the year. They had profits of $1,500 in the first quarter of the year, $3,000 in the third quarter, and $2,000 in the fourth quarter. If their annual profits are $8,000, how much profit, in dollars, did they make in the second quarter?
A: In the three quarters we have figures for, the store made a total of $1500 + $3000 + $2000 = $6,500. Subtracting this from their annual profit shows that they made $8000 – $6500 = $1,500 profit in the second quarter. The answer is 1500.

Q: Joan is at the grocery store. She has a total of $60 to spend. She is going to purchase 2 containers of hummus, which are $5 each. She is going to purchase chicken for $20, bacon for $10, and vegetables for $10. She wants to purchase apples which are $2 each. With her remaining money, how many apples can she purchase?
A:
The total cost of the hummus is 2 * $5 = $10. The total cost of the chicken, bacon, and vegetables is $20 + $10 + $10 = $40. The remaining money she has is $60 - $10 - $40 = $10. The amount of apples she can purchase is $10 / $2 = 5. The answer is 5.