Q: Sam bought a dozen boxes, each with 30 highlighter pens inside, for $10 each box. He rearranged five of these boxes into packages of six highlighters each and sold them for $3 per package. He sold the rest of the highlighters separately at the rate of three pens for $2. How much profit did he make in total, in dollars?
A: 115
Step-by-step reasoning process: Sam bought 12 boxes x $10 = $120 worth of highlighters. He bought 12 * 30 = 360 highlighters in total. Sam then took 5 boxes 6 highlighters / box = 30 highlighters. He sold these boxes for 5 * $3 = $15. After selling these 5 boxes there were 360 - 30 = 330 highlighters remaining. These form 330 / 3 = 110 groups of three pens. He sold each of these groups for $2 each, so made 110 * 2 = $220 from them. In total, then, he earned $220 + $15 = $235. Since his original cost was $120, he earned $235 - $120 = $115 in profit.

Q: Mell went to a cafeteria to spend some time with her friends. She ordered two cups of coffee and one piece of cake. Two of her friends ordered the same, but each of them also bought a bowl of ice cream. One cup of coffee is $4, one piece of cake is $7, and a bowl of ice cream is $3. How much money did Mell and her friends need to pay at the cafeteria?
A: 51
Step-by-step reasoning process: Mell's friends bought two bowls of ice cream, so that was a cost of 2 * 3 = $6. They all three bought two cups of coffee each, so they ordered 2 * 3 = 6 cups of coffee in total. The cost of the coffee was therefore 6 * 4 = $24. All her friends bought one piece of cake each, so the cost of it in total was 3 * 7 = $21. Mell and her friends spent in total 6 + 24 + 21 = $51 at the cafeteria.

Q: Aliens and Martians have different numbers of limbs. Aliens have three arms and eight legs, while Martians have half as many legs and twice as many arms. How many more limbs will five aliens have than five Martians?
A: 5
Step-by-step reasoning process: Martians have 2 * 3 = 6 arms each. They have 8 / 2 = 4 legs each. Five martians will have 5 * 6 + 5 * 4 = 30 + 20 = 50 limbs. Five aliens will have 5 * 3 + 5 * 8 = 15 + 40 = 55 limbs. Five aliens will have 55 - 50 = 5 more limbs than five Martians.

Q: The buyers who came to Mr. Brandon's shop yesterday bought goods worth $80. If 2/5 of the total amount of sales Mr. Brandon made yesterday were credit sales, and the rest were cash sales, how much did Mr. Brandon get from cash sales?
A: 48
Step-by-step reasoning process: 2 / 5 of the total amount of sales Mr. Brandon made yesterday, which were credit purchases, were worth 2 / 5 * $80 = $32. The cash sales that Mr. Brandon made yesterday was $80 - $32 = $48.