Q: Mobius is the fastest mule in Italy. She can run at a top speed of 13 miles per hour when she is without any load to carry, and she can travel at 11 miles per hour as her top speed when she carries a typical load. If she travels the 143 miles from Florence, Italy to Rome, Italy at top speed while carrying a typical load, then returns to Florence at her usual top speed without carrying a load, how long, in hours, will the trip take if she takes two 30-minute rest stops during each half of the trip?
A: 30 minutes is 30 / 60 = 0.5 hours. Two 30 - minute rest stops take 0.5 * 2 - 1 hour. If she takes two rest stops per each half of the journey, then she takes 2 * 1 = 2 hours in rest time. With a load, at her top speed, she can travel 143 miles in 143 / 11 = 13 hours. Without a load, at her top speed, she can travel 143 miles in 143 / 13 = 11 hours. Thus, the round trip will take 13 + 11 + 2 = 26 hours. The answer is 26.

Q: Betty & Paige are raising money for their kids' little league team by hosting a bake sale. Betty has baked 4 dozen chocolate chip cookies, 6 dozen oatmeal raisin cookies and 2 dozen regular brownies. Paige baked 6 dozen sugar cookies, 3 dozen blondies and 5 dozen cream cheese swirled brownies. If they sell the cookies for $1.00 apiece and the blondies/brownies at $2.00 apiece, how much money will they raise?
A: Together, they made 4 + 6 + 6 dozen cookies for a total of 16 dozen cookies. One dozen equals 12 cookies, so 12 * 16 = 192 cookies. Together, they made 2 + 3 + 5 = 10 dozen blondies / brownies. One dozen equals 12 brownies so 12 * 10 = 120 blondies / brownies. They sold the cookies for $1.00 each so 1(192 = $192.00 in cookies. They sold the blondies / brownies for $2.00 each so 2 * 120 = $240 in blondies / brownies. Together, they made 192 + 240 = $432.00 for the little league team. The answer is 432.

Q: In ten years, I'll be twice my brother's age. The sum of our ages will then be 45 years old. How old am I now?
A:
Let X be my age now. In ten years, I'll be X + 10 years old. In ten years, my brother will be (X + 10) * 1 / 2 years old. In ten years, (X + 10) + (X + 10) * 1 / 2 = 45. So (X + 10) * 3 / 2 = 45. X + 10 = 45 * 2 / 3 = 30. X = 30 - 10 = 20 years old. The answer is 20.