Answer this question:Mary has 400 sheep on her farm. She gave a quarter of her sheep to her sister, and half of the remaining sheep to her brother. How many sheep remain with Mary?
Mary gives 1 / 4 * 400 = 100 sheep to her sister. She now has 400 - 100 = 300 sheep remaining. She then gives 1 / 2 * 300 = 150 sheep to her brother. So 300 - 150 = 150 sheep remain.
The answer is 150.

Answer this question:Bob is building a vegetable garden. It is 220 feet long by 120 feet wide. Half of the garden is going to be tilled land. A third of the rest of it will have trellises for vining plants, and the rest will be devoted to raised beds. How big will the raised bed section of the garden be?
The garden is 220 * 120 = 26,400 square feet. The tilled land will take up half the area, and the trellises and raised beds will be the other half. Each half is 26,400 / 2 = 13,200 square feet. The trellises will take up 1 / 3 of the remaining land, so the raised beds will take 1 - 1 / 3 = 2 / 3 of the remaining land. So the total area of the raised bed area will be 13,200 square feet * (2 / 3) = 8,800 square feet.
The answer is 8800.

Answer this question:John weighs 220 pounds when he starts exercising. He manages to lose 10% of his body weight. He then gains back 2 pounds. How much does he weigh at the end?
He lost 220 * .1 = 22 pounds. So after gaining some weight back he was 22 - 2 = 20 pounds lighter than before. So his weight is 220 - 20 = 200 pounds.
The answer is 200.

Answer this question:Hayden has a tank with a small hole in the bottom. The tank starts with 40 gallons of water. It loses 2 gallons of water per hour. Hayden does not add any water for the first two hours. He adds 1 gallon of water to the tank in hour three. He adds three gallons of water to the tank in the fourth hour. How much water is left in the tank at the end of the fourth hour?
Over the four hours, the tank loses 2 * 4 = 8 gallons of water. Hayden adds a total of 1 + 3 = 4 gallons of water. At the end of the four hours, there is 40 - 8 + 4 = 36 gallons of water left in the tank.
The answer is 36.