Question: A typical tournament of tennis has 4 rounds. There are 8 games in the first round, 4 in the second round, 2 in the third round and 1 during the finals. If each game requires new tennis balls, and on average each game uses 5 cans of tennis balls, how many tennis balls in total are used at the end of the tournament if each can has 3 tennis balls?
Answer: There are a total of 8 + 4 + 2 + 1 = 15 games of tennis in a typical tournament. If 1 game uses 5 cans of tennis balls, then 15 games would use 15 * 5 = 75 cans of tennis balls. If 1 can of tennis balls has 3 balls, then 75 cans would have 225 balls. The answer is 225.

Question: Belinda can throw a ball at a speed of 20 feet/second. If the ball flies for 8 seconds before hitting the ground, and Belinda's border collie can run 5 feet/second, how many seconds will it take the border collie to catch up to the ball?
Answer: First find the total distance the ball flies: 20 feet / second * 8 seconds = 160 feet. Then divide that distance by the dog's speed to find how long it takes the dog to catch up to the ball: 160 feet / 5 feet / second = 32 seconds. The answer is 32.

Question: A lorry is 500 pounds when empty. What will its weight be if it's loaded with 20 bags of apples, each weighing 60 pounds?
Answer: If the lorry is loaded with 20 bags of apples, each weighing 60 pounds, it will have an additional weight of 20 * 60 = 1200. The total weight of the lorry after being loaded with the bags of apples will be 500 + 1200 = 1700 pounds. The answer is 1700.

Question: Benjamin collects 6 dozen eggs a day. Carla collects 3 times the number of eggs that Benjamin collects. Trisha collects 4 dozen less than Benjamin. How many dozen eggs do the three collect total?
Answer:
Carla:3(6) = 18 dozen eggs. Trisha: 6 - 4 = 2 dozen eggs. Total: 6 + 18 + 2 = 26 dozen eggs. The answer is 26.