Question: Anahi bought a 500 pages book to write some notes on. In the first week, she wrote on 150 pages. In the second week, she wrote on 30% of the remaining pages. While continuing writing, she accidentally spilled coffee on the book and damaged 20 percent of the empty pages she was to write on. Calculate the total number of empty pages available for her to write on now.
Answer: If she bought a 500 pages book and wrote on 150 pages, the number of empty pages remaining is 500 - 150 = 350 pages. She then wrote on 30% of the remaining empty pages on the second week, a total of 30 / 100 * 350 = 105 pages. The number of remaining empty pages is 350 - 105 = 245 pages. When she spilled coffee on the remaining empty pages, the number of damaged pages was 20 / 100 * 245 = 49. The number of empty pages remaining that she could write on is 245 - 49 = 196 pages. The answer is 196.

Question: John buys 4 pounds of beef. He uses all but 1 pound in soup. He uses twice as many pounds of vegetables as beef. How many pounds of vegetables did he use?
Answer: He used 4 - 1 = 3 pounds of beef. So he used 3 * 2 = 6 pounds of vegetables. The answer is 6.

Question: Connor wanted to order some new books to read. The website was offering free shipping over $50.00. They also had a deal that when you buy 4 books; the first two were 25% off. Book 1 cost 13.00 and Book 2 cost 15.00. Book 3 & 4 were both $10.00 each. How much more money did Connor need to spend to receive free shipping?
Answer: Book 1 was $12.50 and book 2 was $15.00 so 13.00 + 15.00 = $28.00. He was buying 4 books, so these 2 were 25% off so 28.00 * .25 = $7.00. These two books came out to 28 - 7 = $21.00. Books 3 & 4 were both $10 each so 2 * 10 = $20.00. When you add all 4 books together, 21 + 20 = $41.00. To get free shipping he would need to spend 50 - 41 = $9.00 more on books. The answer is 9.

Question: Tim has 30 toads. Jim has 20 more toads than Tim does. Sarah has twice as many toads as Jim does. How many toads does Sarah have?
Answer:
Jim has 30 + 20 = 50 toads. Sarah has 50 * 2 = 100 toads. The answer is 100.