Answer this question:Emily is 20 years old and her older sister, Rachel, is 24 years old. How old is Rachel when Emily is half her age?
The difference in age between the two sisters is 24 - 20 = 4 years. When Rachel is twice Emily’s age, she is 4 x 2 = 8 years old.
The answer is 8.

Answer this question:Every day, Lou works out by running three miles on a circular track that is one-quarter of a mile long. His wife, Rosie, also runs on the same track at the same time as her husband, but she runs at twice the speed of her husband. During their workout, how many times does Rosie circle the track?
If Lou runs 3 miles during his workout on a track that is 1 / 4 miles long, then he circles the track 3 / (1 / 4) = 12 times. If Rosie runs twice as fast as Lou, then over the same time period, she runs 3 * 2 = 6 miles. If Rosie runs 6 miles on the 1 / 4 mile track, then she circles the track 6 / (1 / 4) = 24 times.
The answer is 24.

Answer this question:Johny traveled South 40 miles, then turned East and traveled for 20 more miles than the distance he took to travel to the south. If he turned North and traveled twice the distance he had traveled to the East, calculate the total distance his journey took.
If the distance he took traveling to the East is 20 miles more than the distance he took to travel to the south, he took 40 + 20 = 60 miles traveling to the East. Johny's total distance traveling to the south and then to the East is 60 + 40 = 100 miles. The journey to the North was 2 * 60 = 120, twice the distance he took traveling to the East. The whole journey took 100 + 120 = 220 miles.
The answer is 220.

Answer this question:Brendan has entered a kickboxing competition and wins matches against multiple contestants. He wins all of the matches in the first 2 rounds, each of which had 6 matches, then wins half of the 4 matches in the last round. How many matches did Brendan win throughout the competition?
In the first 2 rounds, Brendan wins a total of 2 rounds * 6 matches per round = 12 matches. In the last round, Brendan wins half of the matches which is 4 matches / 2 = 2 matches. Throughout the competition, Brendan has therefore won 12 + 2 = 14 matches.
The answer is 14.