Question: It takes Polly 20 minutes to cook breakfast every day. She spends 5 minutes cooking lunch. She spends 10 minutes cooking dinner 4 days this week. The rest of the days she spends 30 minutes cooking dinner. How many minutes does Polly spend cooking this week?
Answer: Polly spends 20 * 7 = 140 minutes cooking breakfast. She spends 5 * 7 = 35 minutes cooking lunch. She spends (10 * 4) + (30 * 3) = 130 minutes cooking dinner. Therefore, she spends 140 + 35 + 130 = 305 minutes cooking this week. The answer is 305.

Question: Clayton plays basketball on a team. He has played three games so far. In the first game, he scored 10 points. In the second game, he scored 14 points. In the third game, he scored 6 points. In the fourth game, he scored the average of his points from the first three games. How many total points did Clayton score during the first four games?
Answer: During the first three games Clayton scored 10 points + 14 + 6 = 30 points. The average for Clayton's first three games is 30 points / 3 = 10 points per game. For the first four games, Clayton scored 30 points + 10 points = 40 points. The answer is 40.

Question: One US cup equals 250ml. Brian is making lasagna for himself, his wife, his two kids, his parents, and his wife's parents. The recipe requires 1/2 a cup of milk per serving. How many 1L cartons of milk does Brian need to buy if each person is expected to eat 2 servings?
Answer: There will be a total of (1) Brian + (1) Brian's wife + (2) two kids + (2) Brian's parents + (2) Brian's in - laws = 1 + 1 + 2 + 2 + 2 = 8 people eating. If 1 person eats 2 serving of lasagna then 8 people will eat 8 * 2 = 16 servings. If each serving requires 1 / 2 cup of milk then 16 servings require 16 * 1 / 2 cups = 8 cups of milk. If one cup of milk equals 250 ml, then 8 cups of milk equal 8 * 250 = 2000 ml of milk. 1L carton of milk equals 1000ml of milk, therefore Brian needs 2000 / 1000 = 2 cartons of 1L milk. The answer is 2.

Question: Oranges have 80 calories and cost $1.20 each. If Timmy has $10 and needs to make sure he gets 400 calories, how much money will he have left after he buys the oranges he needs?
Answer:
He needs to buy 5 oranges because 400 / 80 = 5. These will cost $6 because 5 x 1.2 = 6. He will have $4 left because 10 - 6 = 4. The answer is 4.