The 3 pigs that are sold after 12 months will cost the farmer 12 * 10 * 3 = $360 in food costs. The 3 pigs that are sold after 16 months will cost the farmer 16 * 10 * 3 = $480 in food costs. Thus, the total food cost to raise the 6 piglets was 360 + 480 = $840. Next, selling the 6 fully grown pigs will earn the farmer 6 * 300 = $1800 in revenue. Therefore, the earn the farmer 1800 - 840 = $960 in profit from these sales.
The answer: 960
Reverse engineering the question: A farmer owns a hog that recently gave birth to 6 piglets. If the farmer raises the piglets until they are fully grown, he can sell the fully grown pig for $300. Each piglet must grow for at least 12 months before it is large enough to be sold. It costs the farmer $10 per month to feed each animal until it is sold. If the farmer sells 3 pigs after 12 months, and the remaining 3 pigs after 16 months, how much profit did he earn in total (after deducting the cost of food)?

Maria has 4 + 5 = 9 quarters. The number of dollars from the quarters is 9 * $0.25 = $2.25. The number of dollars from the dimes is 4 * $0.10 = $0.40. The number of dollars from the nickels is 7 * $0.05 = $0.35. The total number of dollars is $2.25 + $0.40 + $0.35 = $3.
The answer: 3
Reverse engineering the question: Maria has 4 dimes, 4 quarters, and 7 nickels in her piggy bank. Her mom gives her 5 quarters. How much money, in dollars, does Maria have now?

The total number of tickets needed is 5 tickets + 4 tickets + 4 tickets = 13 tickets. Jeanne needs 13 tickets - 5 tickets = 8 tickets.
The answer: 8
Reverse engineering the question: Jeanne wants to ride the Ferris wheel, the roller coaster, and the bumper cars. The Ferris wheel costs 5 tickets, the roller coaster costs 4 tickets and the bumper cars cost 4 tickets. Jeanne has 5 tickets. How many more tickets should Jeanne buy?

The total number of bath towels used in one month is 3 + 6 + 3 = 12 bath towels. The number of loads of laundry the Smiths need to do is 12 / 4 = 3 loads.
The answer: 3
Reverse engineering the question:
In one month in the Smith house, Kylie uses 3 bath towels, her 2 daughters use a total of 6 bath towels, and her husband uses a total of 3 bath towels. If the washing machine can fit 4 bath towels for one load of laundry, how many loads of laundry will the Smiths need to do to clean all of their used towels?