Question: Jake is watching a new show, and is worried about how much time he has spent watching it. He spent half the day on Monday watching his show, 4 hours on Tuesday watching his show, a quarter of the day on Wednesday watching his show, and he spent half as much time watching the show on Thursday as he had done in total throughout the previous few days. On Friday, he finally finished watching it. If the entire show is 52 hours long, how many hours did Jake watch on Friday?
Answer: On Monday, Jake watched 24 hours / 2 = 12 hours. On Wednesday, he watched 24 hours / 4 = 6 hours. So from Monday to Wednesday, he watched a total of 12 Monday hours + 4 Tuesday hours + 6 Wednesday hours = 22 hours. He watched half of this on Thursday, which is 22 hours / 2 = 11 hours. So from Monday to Thursday, he watched 22 + 11 = 33 hours. To finish the show on Friday, he must have therefore watched 52 – 33 = 19 hours. The answer is 19.

Question: Ruth is counting the number of spots on her cow. The cow has 16 spots on its left side and three times that number plus 7 on its right side. How many spots does it have total?
Answer: First multiply the number of spots on the left side by 3: 16 spots * 3 = 48 spots. Then add 7 to find the number of spots on the right side: 48 spots + 7 spots = 55 spots. Then add the number of spots on each side to find the total number of spots: 55 spots + 16 spots = 71 spots. The answer is 71.

Question: Nikka has a 100 stamp collection. Thirty-five percent of her stamps are Chinese, 20% are US stamps, and the rest are Japanese stamps. How many Japanese stamps does Nikka have?
Answer: Nikka has 100 x 35 / 100 = 35 Chinese stamps. She has 100 x 20 / 100 = 20 US stamps. So, Nikka has 35 + 20 = 55 stamps that are not Japanese. Thus, Nikka has 100 - 55 = 45 Japanese stamps. The answer is 45.

Question: Sally earned $1000 at work last month. This month, she received a 10% raise. How much money will she make in total for the two months?
Answer:
This month she will earn $1000 * (110 / 100) = $1100. In total, she will make $1000 + $1100 = $2100. The answer is 2100.