Q: Patrick is half the age of his elder brother Robert. If Robert will turn 30 after 2 years, how old is Patrick now?
A: The age of Robert now is 30 - 2 = 28 years old. So, Patrick is 28 / 2 = 14 years old. The answer is 14.

Q: Pam has 10 bags of apples. Each of her bags has as many apples as 3 of Gerald's bags. If Gerald's bags have 40 apples each, how many apples does Pam have?
A: Each of Pam's bags contain 40 * 3 = 120 apples. Pam has 120 * 10 = 1200 apples. The answer is 1200.

Q: This morning, farmer Rita's workers collected 30,000 gallons of milk and chilled it in a storage tank. They then spent the next 4 hours pumping milk at a rate of 2,880 gallons/hour from the storage tank into a milk tanker. For the next 7 hours, the workers added more milk into the storage tank, at a rate of 1,500 gallons per hour. How many gallons of milk were left in the storage tank?
A:
In the first 4 hours, the milk tanker got 4 hours * 2880 gallons / hour = 11,520 gallons. Thus, the storage tank was left with 30,000 gallons - 11,520 gallons = 18,480 gallons. For the next 7 hrs, the workers added 1,500 gallons / hour * 7 hours = 10,500 gallons. The total therefore is 18,480 gallons + 10,500 gallons = 28,980 gallons. The answer is 28980.