Question: A new edition Geometry book has 450 pages which are 230 pages less than twice as many pages as the old edition. How many pages did the old edition Geometry book have?
Answer: Let x be the number of pages of the old edition Geometry book. The new edition Geometry book has 2x - 230 = 450 pages. 2x = 450 + 230. 2x = 680. x = 340 pages. The answer is 340.

Question: Genevieve is a computer programmer working on information security software. She has written 4300 lines of code so far. Every 100 lines of code, she debugs the program. If each debugging only finds three errors, and Genevieve fixes the errors each time before proceeding, how many errors has she fixed so far?
Answer: Genevieve has debugged the program 4300 / 100 = 43 times. Thus, she has fixed 43 * 3 = 129 errors so far. The answer is 129.

Question: Lindsay has 4 dolls with blonde hair; four times more dolls with brown than blonde hair; 2 fewer dolls with black than brown hair. How many more dolls with black and brown hair combined does Lindsay have than blonde-haired dolls?
Answer: Lindsay has 4 x 4 = 16 brown - haired dolls. She has 16 - 2 = 14 black - haired dolls. Thus, Lindsay has 16 + 14 = 30 black and brown hair dolls combined. Therefore, she has 30 - 4 = 26 more dolls with black and brown hair combined than blonde - haired dolls. The answer is 26.

Question: There are 12 crates that each contain 150 oranges. There are 16 boxes that each hold 30 nectarines. How many pieces of fruit are in the crates and the boxes in total?
Answer:
Oranges = 12 * 150 = 1800. Nectarines = 16 * 30 = 480. 1800 + 480 = 2280. There are 2280 pieces of fruit in total. The answer is 2280.