Crackers contain 15 calories each and cookies contain 50 calories each. If Jimmy eats 7 cookies, how many crackers does he need to eat to have consumed a total of 500 calories? Give the rationale and then the answer.
Let's think step by step. He has consumed 7 * 50 = 350 calories from the cookies. He needs to consume 500 - 350 = 150 more calories. He should eat 150 / 15 = 10 crackers.. The answer is: 10.

There are three buckets of seeds labeled A, B, and C with 100 seeds. There are ten more seeds in bucket A than in bucket B, and bucket B has 30 seeds. How many seeds are in bucket C? Give the rationale and then the answer.
Let's think step by step. Bucket A has 10 more seeds than bucket B: so there are 10 seeds + 30 seeds = 40 seeds in bucket A. Bucket A and bucket B have 40 seeds + 30 seeds = 70 seeds together. If there are 100 seeds in all the buckets, then bucket C has 100 seeds - 70 seeds = 30 seeds.. The answer is: 30.

Christine makes money by commission rate. She gets a 12% commission on all items she sells. This month, she sold $24000 worth of items. Sixty percent of all her earning will be allocated to her personal needs and the rest will be saved. How much did she save this month? Give the rationale and then the answer.
Let's think step by step. This month, Christine earned a commission of 12 / 100 x $24000 = $2880. She allocated 60 / 100 x $2880 = $1728 on her personal needs. Therefore, she saved $2880 - $1728 = $1152 this month.. The answer is: 1152.