Question: Daniel owns a textile company. Every Monday he delivers 20 yards of fabric, and every Tuesday he delivers twice the amount of fabric he delivers on Monday. Every Wednesday, he delivers 1/4 of the amount of fabric he delivers on Tuesday. If each yard of fabric costs $2 and each yard of yarn costs $3, how much does he earn from Monday to Wednesday?
Answer: Every Tuesday, Daniel delivers 20 x 2 = 40 yards of fabric. Every Wednesday, he delivers 40 x 1 / 4 = 10 yards of fabric. Thus, he delivers a total of 20 + 40 + 10 = 70 yards of fabric from Monday to Wednesday. Therefore, Daniel earns $2 x 70 = $140 from it. The answer is 140.

Question: A parking area near Peter's house is 4 stories tall. There are 4 open parking spots on the first level. There are 7 more open parking spots on the second level than on the first level, and there are 6 more open parking spots on the third level than on the second level. There are 14 open parking spots on the fourth level. How many open parking spots are there in all?
Answer: The number of open parking spots on the second level is 4 spots + 7 spots = 11 spots. The number of open parking spots on the third level is 11 spots + 6 spots = 17 spots. There are 4 spots + 11 spots + 17 spots + 14 spots = 46 open parking spots in all. The answer is 46.

Question: Emily can type 60 words per minute. How many hours does it take her to write 10,800 words?
Answer: In an hour, Emily can type 60 words * 60 minutes = 3600 words. It will take her 10800 / 3600 = 3 hours to write 10800 words. The answer is 3.

Question: Michael wants to dig a hole 400 feet less deep than twice the depth of the hole that his father dug. The father dug a hole at a rate of 4 feet per hour. If the father took 400 hours to dig his hole, how many hours will it take for Michael to dig a hole that is 400 feet less than twice as deep as his father's hole working at the same rate?
Answer:
Since the father dug a hole with a rate of 4 feet per hour, if the father took 400 hours digging the hole, he dug a hole 4 * 400 = 1600 feet deep. Twice the depth of the hole that Michael's father dug is 2 * 1600 = 3200 feet. Michael wants to dig a hole 400 feet less than twice the depth of the hole that his father dug, meaning he wants to dig a hole 3200 - 400 = 2800 feet deep. To dig a hole that is 400 feet less than twice as deep as his father's hole working at a rate of 4 feet per hour, Michael will have to work for 2800 / 4 = 700 hours. The answer is 700.