Question: Abigail has a report due tomorrow which needs to be 1000 words in length. Abigail can type 300 words in half an hour. If she has already written 200 words, how many more minutes will it take her to finish the report?
Answer with step-by-step thinking: She needs to type an additional 1000 – 200 = 800 words. In one minute she can type 300 words / 30 = 10 words. It will take her 800 / 10 = 80 more minutes to finish typing the report.
So the answer is 80.


Question: Tate finishes high school in 1 year less than normal. It takes him 3 times that long to get his bachelor's degree and Ph.D. How many years did he spend in high school and college?
Answer with step-by-step thinking: He finished high school in 4 - 1 = 3 years. It takes him 3 * 3 = 9 years to finish tertiary education. So he spends 3 + 9 = 12 years on this education.
So the answer is 12.


Question: There are 516 cars in a parking lot. One-third are blue, one-half are red, and the rest are black. How many black cars are on the lot?
Answer with step-by-step thinking:
Blue = 516 * (1 / 3) = 172 cars. Red = 516 * (1 / 2) = 258. Black = 516 - (172 + 258) = 86. There are 86 black cars on the lot.
So the answer is 86.