Question: Tina is a professional boxer. She wins her first 10 fights of her career. She then goes on to win 5 more before losing her first fight, and then doubles her number of wins before losing again. She then retires. How many more wins than losses does she have at the end of her career?
Answer: Step-by-step reasoning process: Tina wins her first 10, and then wins 5 more for 10 + 5 = 15 wins before losing 1. She then doubles her number of wins for a total of 15 * 2 = 30 wins, before losing 1 more for 1 + 1 = 2 losses. For her career she has 30 - 2 = 28 more wins than losses.
So the answer is 28.

Question: Polly and Peter play chess. Polly takes an average of 28 seconds per move, while Peter takes an average of 40 seconds per move. The match ends after 30 moves. How many minutes did the match last?
Answer: Step-by-step reasoning process: Both Polly and Peter played 30 / 2 = 15 moves each one. With an average of 28 seconds per move, Polly's moves lasted a total of 15 * 28 = 420 seconds. With an average of 40 seconds per move, Peter's moves lasted a total of 15 * 40 = 600 seconds. In total, the match lasted 420 + 600 = 1020 seconds. In minutes, the match lasted 1020 / 60 = 17 minutes.
So the answer is 17.

Question: Mother made 2 dozen brownies and placed them on the kitchen counter to cool. Father smelled the brownies, came into the kitchen and ate 8 of them. Then, their daughter, Mooney, wandered into the kitchen and ate 4 of the brownies. The next morning, Mother made another two dozen brownies and added them to those remaining from the day before. After that, how many brownies were on the counter?
Answer: Step-by-step reasoning process: Two dozen brownies is 2 * 12 = 24 brownies. After Father ate his 8, there were 24 - 8 = 16 brownies remaining on the counter. After Mooney ate her 4, there were 16 - 4 = 12 brownies remaining on the counter. Mother made a second batch of two - dozen brownies, or 2 * 12 = 24 brownies. After Mother added the second two - dozen, there were 12 + 24 = 36 brownies on the kitchen counter.
So the answer is 36.

Question: Selena and Josh were running in a race. Together they ran 36 miles. Josh ran half of the distance that Selena ran. How many miles did Selena run?
Answer:
Step-by-step reasoning process: Let J = Josh's distance. 2J = Selena's distance. J + 2J = 36. 3J = 36 miles. J = 12. 2J = 24 miles. Selena ran 24 miles.
So the answer is 24.