Q: Tracy, John and Jake found their combined weight to be 158 kilograms. If Tracy weighs 52 kg and Jake weighs 8kg more than Tracy, what is the range of their weights?
A: Jake weighs 8kg more than 52 kg which is 8 + 52 = 60 kg. Tracy and Jake together weigh 60 + 52 = 112kg. John therefore weighs 158 - 112 = 46 kg. The range of their weights is 60 - 46 = 14kg. The answer is 14.
Question: In the cafeteria, Athena wants to buy snacks for her friends. She bought 3 sandwiches at $3 each and 2 fruit drinks at $2.5 each. How much did she spend in all?
Answer: Athena spent 3 x $3 = $9 on sandwiches. She spent 2 x $2.5 = $5 on fruits drinks. Therefore, Athena spent $9 + $5 = $14 in all. The answer is 14.
[Question]Mark has the option of getting a $300 lens with a 20% discount or a $220 lens. How much money does he save by buying the cheaper lens?
[Answer]The discount is worth 300 * .2 = $60. So the lens cost 300 - 60 = $240. That means he saves 240 - 220 = $20 by buying the cheaper lens. The answer is 20.
Q: Sebastian bought art exhibit tickets for his parents and himself. Tickets were $44 per person. He was also charged an $18 service fee for the online transaction. What is the total amount he paid for the tickets?
A: Tickets for Sebastian and his parents cost $44 x 3 = $132. Tickets and service charge cost $132 + $18 = $150. The answer is 150.
Question: Cara has 60 marbles in a bag. 20 of them are yellow, half as many are green, and the remaining marbles are equally divided between red and blue. If Cara picks a marble at random, what are the odds it's blue (expressed as a percentage)?
Answer: First find the number of green marbles: 20 yellow marbles / 2 = 10 green marbles. Then find how many marbles are either red or blue: 60 marbles - 20 yellow marbles - 10 green marbles = 30 marbles. Divide this number in half to find how many marbles are blue: 30 marbles / 2 = 15 blue marbles. Finally, divide the number of blue marbles by the total number of marbles and multiply by 100 to find the percentage chance of getting a blue marble: 15 marbles / 60 marbles * 100 = 25%. The answer is 25.
Q: Johan has a ten-bedroom house with 8 walls in each room. He paints 3/5 of the rooms in the house green and paints the rest of the rooms with purple color. How many walls in the house did he paint purple?
A:
Since Cristian's house has ten rooms, he painted 3 / 5 * 10 = 6 rooms with green color. The number of rooms he painted with purple is 10 - 6 = 4 rooms. Since each room in the house has eight walls, the number of walls painted purple is 8 * 4 = 32. The answer is 32.