一个美术生
Cheryl has thrice as many colored pencils as Cyrus. Madeline has 63 colored pencils and only half of what Cheryl has. How many colored pencils do the three of them have altogether?
Cheryl has 63 x 2 =
<<63*2=126>>126 colored pencils. Cyrus has 126/3 = <<126/3=42>>42 colored pencils. Altogether, they have 126 + 42 + 63 = <<126+42+63=231>>231 colored pencils. #### 231 John gets a new EpiPen every 6 months. They cost $500 and insurance covers 75%. How much does he pay per year? He needs to buy 12/6=<<12/6=2>>2 per year Insurance covers 500*.75=$<<500*.75=375>>375 So he pays 500-375=$<<500-375=125>>125 So he pays 125*2=$<<125*2=250>>250 #### 250 Tim owns rental properties. He decides to replace all the locks and needs to get 3 keys per lock. He owns two apartment complexes which each have 12 apartments. How many keys does he need to make? There are 2*12=<<2*12=24>>24 apartments he needs keys for So he needs 24*3=<<24*3=72>>72 keys #### 72 An alien invades Earth. It abducts 200 people. He returns 80% of the people abducted. After that he takes 10 people to another planet. He took the rest to his home planet. How many people did he take to his home planet? He returned 200*.8=<<200*.8=160>>160 people So he had 200-160=<<200-160=40>>40 people He took 10 of those to another planet so he took 40-10=<<30=30>>30 to his home planet #### 30 Johann had 60 oranges. He decided to eat 10. Once he ate them, half were stolen by Carson. Carson returned exactly 5. How many oranges does Johann have now? Start with the consumed oranges: 60 oranges - 10 oranges = <<60-10=50>>50 oranges. To find the stolen oranges: 50 oranges /2 = <<50/2=25>>25 oranges. To find the number of oranges after the return: 25 oranges + 5 oranges = <<25+5=30>>30 oranges. #### 30 Cassie is trimming her pet's nails. She has four dogs and eight parrots. Each dog has four nails on each foot, and each parrot has three claws on each leg, except for one parrot who has an extra toe. How many nails does Cassie need to cut? First, find the number of dog nails by multiplying the number of dogs by the number of nails on each leg and the number of legs on each dog: 4 dogs * 4 legs per dog * 4 nails per leg = <<4*4*4=64>>64 nails. Then do the same for parrots, ignoring the one parrot's extra toe for now: 8 parrots * 2 legs per parrot * 3 nails per leg = <<8*2*3=48>>48 nails Now add one to the previous number because one parrot has an extra toe: 48 + 1 = <<48+1=49>>49 nails. Now add the number of nails from the parrots and the dog: 49 nails + 64 nails = <<49+64=113>>113 nails. #### 113 Tom wants to visit Barbados. He needs to get 10 different vaccines to go and a doctor's visit. They each cost $45 and the doctor's visit costs $250 but insurance will cover 80% of these medical bills. The trip itself cost $1200. How much will he have to pay? The medical cost comes out to 45*10+250=$<<45*10+250=700>>700 Insurance covers 700*.8=$<<700*.8=560>>560 So he has to pay 700-560=$<<700-560=140>>140 Added to the cost of the trip he has to pay 1200+140=$<<1200+140=1340>>1340 #### 1340 Elizabeth, Emma, and Elsa went shopping on Wednesday. In total Emma spent $58 If Elsa spent twice as much as Emma, and Elizabeth spent four times as much as Elsa, how much money did they spend in total? Elsa spent 58*2 = <<58*2=116>>116. Elizabeth spent 116*4 = <<116*4=464>>464. Emma, Elsa, and Elizabeth spent 58+116+464 = <<58+116+464=638>>638 in total. #### 638 The treasurer of a football team must buy equipment for the sixteen players of his team. Each piece of equipment consists of a $25 jersey, a $15.20 pair of shorts and a pair of socks at $6.80. How much does all the equipment of all the players on the team cost? Full Equipment Price for one player: $25 + $15.20 + $6.80 = $<<25+15.2+6.8=47>>47 Prices for full equipment for 16 people: 16 players x $47/player = $<<16*47=752>>752 #### 752 Three builders build a single floor of a house in 30 days. If each builder is paid $100 for a single day’s work, how much would it cost to hire 6 builders to build 5 houses with 6 floors each? 6 builders can build a single floor 6 builders / 3 builders = <<6/3=2>>2 times as fast as 3 builders. Thus 6 builders would build a single floor in 30 days / 2 = 15 days There are 5 hours x 6 floors/house = <<5*6=30>>30 floors in total in 5 houses with 6 floors each. Therefore 6 builders would complete the project in 15 days/floor x 30 floors = 450 days. It would cost 450 days x $100/day/builder * 6 builders = $<<450*100*6=270000>>270000 to complete the project #### 270000