Question: It is the rainy season in central Texas. It rained for 7 hours on Monday at a rate of 1 inch per hour. On Tuesday, it rained for 4 hours at a rate of 2 inches per hour, and on Wednesday, it rained for 2 hours at a rate of twice that of the previous day. What is the total combined rainfall, in inches, for these three days?
Answer: On Monday, 7 hours of rain at a rate of 1 inch per hour is 7 * 1 = 7 inches of rain. On Tuesday, 4 hours of rain at a rate of 2 inches per hour is 4 * 2 = 8 inches of rain. Twice the rate of Tuesday is 2 * 2 = 4 inches per hour. Wednesday, 2 hours of rain at a rate of 4 inches per hour is 2 * 4 = 8 inches of rain. The combined total of the rainfall for these three days is 7 + 8 + 8 = 23 inches of rain. The answer is 23.
[Question]Three years from now, Tully will be twice as old as Kate. How old was Tully a year ago if Kate is now 29 years old?
[Answer]Three years from now, Kate will be 29 years + 3 years = 32 years old. So by that time, Tully will be 32 years x 2 = 64 years old. This means, Tully is 64 years - 3 years = 61 years old now. Therefore, Tully was 61 years - 1 year = 60 years old last year. The answer is 60.
Q: Brittany is older than Rebecca by 3 years, who is 25. Brittany goes on a 4-year vacation. How old is Brittany when she returns from her vacation?
A: Brittany is 25 + 3 = 28 years old. Brittany is 28 + 4 = 32 years when she returns from her vacation. The answer is 32.
Question: John went on a mission that was supposed to take 5 days. Instead it took 60% longer. He then had to go on a second mission which took 3 days. How long was he on missions?
Answer: The first mission took 5 * .6 = 3 days longer than anticipated. So it took 5 + 3 = 8 days. That means the two missions took 8 + 3 = 11 days. The answer is 11.
[Question]To celebrate a recent promotion, Arthur decided to treat himself to dinner at a nice restaurant. He ordered a nice appetizer for $8, a delicious ribeye steak for his entrée at $20, had two glasses of nice red wine with dinner for $3 each, and a slice of caramel cheesecake for dessert for $6. He used a voucher for half off the price of his entrée, but he very thoughtfully tipped his waitress a full 20% of what the full cost of his meal would have been without the discount. How much, including the tip, did Arthur spend on dinner?
[Answer]The cost of his food, before the voucher, was $8 + $20 + $3 + $3 + $6 = $40. The tip was $40 * .20 = $8. The voucher saved him $20 / 2 = $10. So the full price of Arthur's meal, with tip, was $40 - $10 + 8 = $38. The answer is 38.
[Question]Christian and Sue wanted to get a $50.00 bottle of perfume for their mom for her birthday. Christian had $5.00 saved up and Sue had $7.00. Christian then mowed 4 of his neighbors' yards, charging $5.00 each, while Sue walked 6 dogs for her neighbors, charging $2.00 per dog. How much more money will Christian and Sue need to make in order to buy the bottle of perfume for their mom?
[Answer]
Christian just mowed 4 yards at $5.00 each so he made 4 * 5 = $20.00. Sue just walked 6 dogs at $2.00 each so she made 6 * 2 = $12.00. Christian had $5.00 saved and just made $20.00 while Sue had $7.00 saved and just made $12.00 so together they had 5 + 20 + 7 + 12 = $44. The perfume cost $50.00 and they had $44.00 so they needed to make 50 - 44 = $6.00 more dollars. The answer is 6.