A phone factory makes twice as many phones as last year. Last year's production was 5000 phones. If a quarter of this year's production is sold, how many phones are left in the factory? Give the rationale and then the answer.
Let's think step by step. This year's total production is 5000 * 2 = 10000 phones. A quarter of this year's production is 10000 / 4 = 2500 phones. The number of phones left after selling a quarter of the production is 10000 2500 = 7500 phones.. The answer is: 7500.

Nathan planted 5 strawberry plants and 7 tomato plants. He harvested 14 strawberries from each plant and 16 tomatoes from each plant. He then distributed the strawberries and tomatoes into baskets of 7. He sold a basket of strawberries for $9 and a basket of tomatoes for $6. How much money does Nathan make from his harvest? Give the rationale and then the answer.
Let's think step by step. Nathan harvested a total of 5 x 14 = 70 strawberries. He harvested a total of 7 x 16 = 112 tomatoes. He was able to fill 70 / 7 = 10 baskets with strawberries. He was able to fill 112 / 7 = 16 baskets with tomatoes. He made 10 x $9 = $90 from the strawberries. He made 16 x $ 6 = $96 from the tomatoes. All together, he made $90 + $96 = $186 from his harvest.. The answer is: 186.

Ivanka wrote a book that took her 3 more months than it took Woody to write a book. Woody spent 1.5 years writing his book. How many months in total did Ivanka and Woody need to write their books? Give the rationale and then the answer.
Let's think step by step. Woody = 1.5 years = 18 months. Ivanka = 18 + 3 = 21 months. 18 + 21 = 39 months. It took Ivanka and Woody 39 months to write their books.. The answer is: 39.