Question: Ms. Jones got thank you cards from 30% of her class. 1/3 of these contained a gift card for $10. If she got $50 in gift cards, how many students were in her class?
Answer: Step-by-step reasoning process: She got 5 gift cards because 50 / 10 = 5. She got 15 thank you cards because 5 / (1 / 3) = 15. She has 50 students because 15 / .3 = 50.
So the answer is 50.

Question: Bernie loves eating chocolate. He buys two chocolates every week at the local store. One chocolate costs him $3. In a different store, there is a long-term promotion, during which each chocolate costs only $2. How much would Bernie save in three weeks, if he would buy his chocolates in this store instead of his local one?
Answer: Step-by-step reasoning process: During three weeks, Bernie buys 3 * 2 = 6 chocolates. In the local store, he pays for them 6 * 3 = $18. If Bernie would buy the same chocolates in the different store, he would pay 6 * 2 = $12. So Bernie would be able to save 18 - 12 = $6.
So the answer is 6.

Question: There were 133 people at a camp. There were 33 more boys than girls. How many girls were at the camp?
Answer: Step-by-step reasoning process: If there were 33 fewer boys at camp, there would be the same number of both boys and girls or 133 - 33 = 100 people. That means that there were 100 / 2 = 50 girls at the camp.
So the answer is 50.

Question: A kilogram of pork costs $6 while a kilogram of chicken costs $2 less. How much will a 3-kilogram of chicken and a kilogram of pork cost?
Answer:
Step-by-step reasoning process: A kilogram of chicken costs $6 - $2 = $4. Three kilograms of chicken cost $4 x 3 = $12. So, a 3 - kilogram of chicken and a kilogram of pork cost $12 + $6 = $18.
So the answer is 18.