Q: John is a hack author. He writes a book every 2 months. He has been writing for 20 years and has earned an average of $30,000 per book. How much money has he made writing?
A: He writes 12 / 2 = 6 books a year. That means he has written 6 * 20 = 120 books. So he has made 120 * 30,000 = $3,600,000 from writing. The answer is 3600000.

Q: Mr. and Mrs. Hugo went on a road trip. On the first day, they traveled 200 miles. On the second day, they traveled 3/4 as far. On the third day, they traveled 1/2 as many miles as the first two days combined. How many miles did they travel for 3 days?
A: On the second day, Mr. and Mrs. Hugo traveled 200 x 3 / 4 = 150 miles. They traveled a total of 200 + 150 = 350 miles in the first two days. On the third day, they traveled 350 x 1 / 2 = 175 miles. So, Mr. and Mrs. Hugo traveled a total of 200 + 150 + 175 = 525 miles for 3 days. The answer is 525.

Q: Jerry mows 8 acres of lawn each week. He mows ¾ of it with a riding mower that can cut 2 acres an hour. He mows the rest with a push mower that can cut 1 acre an hour. How long does Jerry mow each week?
A:
Jerry mows 8 acres x ¾ = 6 acres with a riding mower. It will take him 6 acres / 2 each hour = 3 hours. Jerry mows 8 acres – 6 acres mowed with a riding mower = 2 acres with a push mower. It will take him 2 acres x 1 hour = 2 hours. It takes Jerry a total of 3 hours on the riding mower + 2 hours on the push mower = 5 hours. The answer is 5.