[Question]John buys a pair of earbuds that cost $200. If tax was 15%, how much did he pay after tax?
[Answer]The tax was 200 * .15 = $30. So he paid 200 + 30 = $230. The answer is 230.
Q: Nicole collected 400 Pokemon cards. Cindy collected twice as many, and Rex collected half of Nicole and Cindy's combined total. If Rex divided his card equally among himself and his three younger siblings, how many cards does Rex have left?
A: Cindy has 400 x 2 = 800 cards. Nicole and Cindy have 400 + 800 = 1200 cards. Rex has 1200 / 2 = 600 cards. Rex is left with 600 / (3 + 1 = 4) = 150 cards. The answer is 150.
Question: Mark bought a shirt, pants, and shoes for $340. What is the price of the pants knowing that the price of a shirt is three-quarters of the price of the pants and that the price of a shoe is ten dollars more than the price of the pants?
Answer: Let X be the price of the pants. The price of the shirt is 3 / 4 * X. The price of the shoes is X + 10. The total amount paid is X + 3 / 4 * X + X + 10 = $340. Combining like terms we get X * 11 / 4 + 10 = $340. Subtracting 10 from both sides we get X * 11 / 4 = $330. Dividing both sides by 11 / 4 we get X = $120. The answer is 120.
[Question]Krista started raising chickens. She has 10 hens who lay eggs. She sells the eggs for $3 a dozen. In four weeks, she sold $120 worth of eggs. If she sold all the eggs her hens laid, how many eggs does each hen lay a week?
[Answer]At $3 a dozen, Krista sold $120 / $3 = 40 dozen eggs. If 10 hens laid 40 dozen eggs in 4 weeks, that means 40 dozen eggs / 10 hens = 4 dozen eggs were laid by each hen in four weeks. To find out how many eggs each hen laid in a week, 4 dozen eggs / 4 weeks = 1 dozen eggs each week. Since a dozen has 12 eggs, each hen lays 12 * 1 = 12 eggs each week. The answer is 12.
Q: Daria wants to go to a concert by her favorite band. She wants to buy tickets for her and for three of her friends. One ticket cost is $90. How much money does Daria need to earn if she currently has only $189?
A: Daria wants to buy tickets for four persons, so the cost will be 4 tickets * $90 / ticket = $360. Daria currently has $189, so she needs $360 - $189 = $171 more. The answer is 171.
Question: Jeff decides to install more cabinets in his kitchen. He currently has 3 cabinets over one counter and no other cabinets. He installs twice as many cabinets over 3 different counters each. He then installs 5 more cabinets. How many total cabinets does he have?
Answer:
He installs 3 * 2 = 6 cabinets over each counter. So he installs 6 * 3 = 18 cabinets over counters. That means he installed a total of 18 + 5 = 23 cabinets. So he has 23 + 3 = 26 cabinets. The answer is 26.