[Question]Carter has a 14-hour road trip. He wants to stop every 2 hours to stretch his legs. He also wants to make 2 additional stops for food and 3 additional stops for gas. If each pit stop takes 20 minutes, how many hours will his road trip become?
[Answer]He has a 14 - hour trip and wants to stop every 2 hours so that's 14 / 2 = 7 pit stops. He will make 7 pit stops plus 2 more for food and 3 more for gas for a total of 7 + 2 + 3 = 12 pit stops. Each pit stop will take 20 minutes and he is making 12 stops so that's 20 * 12 = 240 minutes. 60 minutes are in an hour and he's adding 240 minutes to his trip so that's 240 / 60 = 4 more hours. His trip started as 14 hours and he will add an additional 4 hours in pit stops for a total of a 14 + 4 = 18 hour long trip. The answer is 18.
Q: On an American flag, the first stripe is red and half of the remaining stripes are also red. Each flag has 13 stripes. John buys 10 flags. How many red stripes are there?
A: There are 13 - 1 = 12 stripes left. So there are 12 / 2 = 6 red stripes. So the total number of red stripes is 6 + 1 = 7 red stripes. So he has a total of 7 * 10 = 70 red stripes. The answer is 70.
Question: Isabella is twice as old as Antonio. In 18 months, she will be 10 years old. How many months old is Antonio?
Answer: First, we determine that Isabella will be 10 * 12 = 120 months old at age 10, to find a number to compare her age to Antonio's with. Then we subtract the 18 months from the total of 120 months to find 120 - 18 = 102 months, which is the age Isabella is currently. Since at 102 months old Isabella is twice as old as Antonio, we take 102 / 2 = 51 months as Antonio's age. The answer is 51.
[Question]Monica and Sheila are twins. Their mother gave them $50 and told them to buy some toilet paper and spend the remainder on groceries. The toilet paper cost $12. They bought apples, butter, eggs, and a large ham for twice the cost of the toilet paper. Since they still had some leftover money, they called their mother and she gave them permission to buy whatever they wanted for themselves as long as they shared the money evenly. They saw some boots they really liked, but a pair of boots costs 3 times the amount they had left. How much more would Monica and Sheila each have to add of their own money to buy two pairs of boots?
[Answer]The groceries cost $12 x 2 = $24. Including the toilet paper, Monica and Sheila had already spent $12 + $24 = $36. This means that they had $50 - $36 = $14 left to spend on themselves. However, the boots cost $14 x 3 = $42 per pair. Two pairs of boots would cost $42 x 2 = $84. They need another $84 - $14 = $70 to buy two pairs. Each of them needs to add another $70 / 2 = $35. The answer is 35.
Q: Last night, Jim bought a $7 lamp and a bulb which cost $4 less. If he bought 2 lamps and 6 bulbs, how much did Jim pay in all?
A: The cost of the bulb is $7 - $4 = $3. The cost of 2 lamps is $7 x 2 = $14. The cost of 6 bulbs is $3 x 6 = $18. Jim paid a total of $14 + $18 = $32. The answer is 32.
Question: A one-way ticket costs $2. A 30-day pass costs $50. What's the minimum number of rides you will need to take every month so that the 30-day pass is strictly cheaper per ride?
Answer:
For the 30 - day pass to be cheaper, then the average fare should be cheaper than the $2 one - way ticket. If the 30 - day pass costs $50, then I should take at least $50 / $2 = 25 rides to pay the same as a one - way ticket. However, given that we want the 30 - day pass per ride to be strictly cheaper we should ride at least 25 + 1 = 26 times. The answer is 26.