Question: John climbs up 9 flights of stairs. Each flight is 10 feet. If each step is 18 inches, how many steps does he climb up?
Answer: He has to climb 9 * 10 = 90 feet. That means he needs to climb 90 * 12 = 1080 inches. That means he needs to climb 1080 / 18 = 60 stairs. The answer is 60.
[Question]Erwin eats 2 chocolates on weekdays and 1 chocolate on weekends. He ate 24 chocolates in total. How many weeks did it take to finish all the chocolate?
[Answer]On weekdays he eats 5 * 2 = 10 chocolates. On weekends he eats 2 * 1 = 2 chocolates. He eats 10 + 2 = 12 chocolates in a week. It takes 24 / 12 = 2 weeks to finish all the chocolate. The answer is 2.
Q: Rodney is a door-to-door salesman trying to sell home security systems. He gets a commission of $25 for each system he sells. He is canvassing a neighborhood of four streets with eight houses each. The first street gave him half the sales that the second street did, while every house on the third street turned him away and the fourth street resulted in only one sale. His total commission was $175. How many security systems did he sell on the second street?
A: Let S be the number of systems Rodney sold on the first street. He sold 2S systems on the second street. Based on his commission, he sold 175 / 25 = 7 systems. In all, he sold S + 2S + 0 + 1 = 3S + 1 = 7 systems. On the first and second streets, he sold 3S = 7 - 1 = 6 systems. Thus, on the first street he sold S = 6 / 3 = 2 systems. On the second street, Rodney sold 2 * 2 = 4 security systems. The answer is 4.
Question: Tom has only been getting 6 hours of sleep a day. He increases that by 1/3. How many hours of sleep does he get per night?
Answer: He increases his sleep by 6 / 3 = 2 hour per night. So he now gets 6 + 2 = 8 hours of sleep per night. The answer is 8.
[Question]An internet provider gives a 5% discount if the customer pays before the 25th day of the month. If the monthly internet rate is $50, how much did the customer pay in all for 4 months if he paid every 25th of the month?
[Answer]The 5% discount amounts to $50 x 5 / 100 = $2.50. So the total discount given to the customer for 4 months was $2.50 x 4 = $10. The customer was supposed to pay $50 x 4 = $200 in all for 4 months without discount. Since the customer is entitled to the discount, then he only paid a total of $200 - $10 = $190 for 4 months. The answer is 190.
[Question]Joy can read 8 pages of a book in 20 minutes. How many hours will it take her to read 120 pages?
[Answer]
In one hour, there are 3 sets of 20 minutes. So, Joy can read 8 x 3 = 24 pages in an hour. It will take her 120 / 24 = 5 hours to read 120 pages. The answer is 5.