Question: In a studio audience of 100 people, 40% of these people have an envelope taped underneath their chairs. 20% of these people will have "You Won" in their envelope, the rest will have empty envelopes. How many people will win a prize?
Answer: Step-by-step reasoning process: 40% of the 100 studio audience will have an envelope under their chair so .40 * 100 = 40 people will find an envelope. 20% of these 40 people will find a "You Won" notice so only .20 * 40 = 8 people will win.
So the answer is 8.

Question: Juliet is 3 years older than her sister Maggie but 2 years younger than her elder brother Ralph. If Juliet is 10 years old, what is the sum of Maggie's and Ralph's ages?
Answer: Step-by-step reasoning process: Maggie is 3 years younger than Juliet who is 10 years so she is 10 - 3 = 7 years old. Ralph is 2 years older than Maggie so he is 10 + 2 = 12 years old. The sum of Maggie's and Ralph's ages is 7 + 12 = 19 years.
So the answer is 19.

Question: Two siblings, Eman and Frank, agreed to buy a new computer table, computer chair, and a joystick. The computer table costs $140, the computer chair costs $100, and the joystick costs $20. Eman agreed to pay for the computer chair while Frank agreed to pay for the computer table. Then Frank agreed to pay 1/4 of the price of the joystick and the rest will be paid by Eman. How much more money will Frank spend than Eman?
Answer: Step-by-step reasoning process: Frank will pay $20 x 1 / 4 = $5 for the joystick. Eman will pay $20 - $5 = $15 for the joystick. So, Frank will pay a total of $140 + $5 = $145. While Eman will pay a total of $100 + $15 = $115. Therefore, Frank will spend $145 - $115 = $30 more than Eman.
So the answer is 30.

Question: Thomas started saving for a car almost 2 years ago. For the first year, his weekly allowance was $50. In the second year, he got a job that pays $9 an hour at a coffee shop and worked 30 hours a week, so his parents discontinued his allowance. If the car he wants to buy is $15,000 and he spends $35 a week on himself, how much more money does Thomas need to buy the car by the end of the 2 years?
Answer:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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Step-by-step reasoning process: There are 52 weeks in a year. For the first year, Thomas received 52 x 50 = $2600. In the second year, Thomas earned 9 x 30 = $270 a week. In a year, Thomas earned 52 x 270 = $14,040. The total for the two years is 14040 + 2600 = 16640. In 2 years, Thomas' weekly expenses amounted to $35 x (52 x 2) = $35 x 104 = $3640. By the end of 2 years, Thomas would have saved $16640 - $3640 = 13000. Thomas still needs $15,000 - 13000 = $2000.
So the answer is 2000.