A dragon hoards jewels and gold in its cave. A jealous king snuck in and stole three prize jewels. The dragon burned him to a crisp and stole back its jewels, along with twice as many of the king’s crown jewels from his crown that melted in the dragon’s fire. The new jewels were a third of the number of jewels the dragon had owned before. How many jewels did the dragon own in the end?

The dragon stole 2 * 3 =

<<2*3=6>>6 of the king’s crown jewels. The dragon owned 6 * 3 = <<6*3=18>>18 jewels before the theft. Thus, the dragon owned 18 + 6 = <<18+6=24>>24 jewels in the end. #### 24 A total of 107 oranges are picked by Del and Juan. Del picked 23 on each of 2 days and Juan picked the rest. How many oranges did Juan pick? Del = 23 * 2 = <<23*2=46>>46 oranges 107 - 46 = <<107-46=61>>61 oranges Juan picked <<61=61>>61 oranges. #### 61 Wade has called into a rest stop and decides to get food for the road. He buys a sandwich to eat now, one for the road, and one for in the evening. He also buys 2 drinks. If the drinks cost $4 each and Wade spends a total of $26 then how much, in dollars, did the sandwiches each cost? The drinks cost a total of $4 per drink * 2 drinks = $<<4*2=8>>8. So the sandwiches cost a total of $26 total spending - $8 spending on drinks = $<<26-8=18>>18. Therefore, each sandwich costs $18 for sandwiches / 3 sandwiches = $<<18/3=6>>6. #### 6 A store gives a 10% discount for the amount of the sell that was over $1000. John buys 7 items that each cost $200. What does his order cost after the discount? His order came out to 7*200=$<<7*200=1400>>1400 So there was 1400-1000=$<<1400-1000=400>>400 that qualified for the discount So his discount saved 400*.1=$<<400*.1=40>>40 So his purchase came out to 1400-40=$<<1400-40=1360>>1360 #### 1360 Nadine's dog rolls around in the mud. She spends 10 minutes hosing him off outside, then shampoos him three times, which takes 15 minutes per shampoo. How long does she spend cleaning her dog total? First find the total shampoo time: 15 minutes/shampoo * 3 shampoos = 45 minutes Then add the hosing off time to find the total cleaning time: 45 minutes + 10 minutes = <<45+10=55>>55 minutes #### 55 Amiyah is cutting some trees to build a cow shade. For every tree she cuts, she plants 5 new trees. If there were 400 trees on her farm and she cut 20% of them, calculate the total number of trees on the farm. The number of trees that Amiyah cut is 20/100*400 = <<20/100*400=80>>80 The number of trees remaining on the farm after she cut 80 trees is 400-80 = <<400-80=320>>320 For every tree that Amiyah cut, she plants 5 new trees, and since she cut 80 trees, she planted 80*5 = <<80*5=400>>400 new trees. The total number of trees on the farm is now 320+400 = <<320+400=720>>720 trees. #### 720 Dream's car consumes 4 gallons of gas per mile. If she drives 400 miles today and 200 more miles tomorrow than today, how many gallons of gas will the car consume? If she drives 400 miles today, the car will have consumed 4*400 = <<400*4=1600>>1600 gallons of gas. Tomorrow, if she drives 200 more miles, the total distance will be 200+400 = <<200+400=600>>600 miles. The fuel consumption by the car tomorrow is 4*600 = <<4*600=2400>>2400 gallons. The car's total fuel consumption in the two days is 2400+1600 = <<2400+1600=4000>>4000 gallons. #### 4000 A YouTube video is 100 hours long. Lila decides to watch it at two times the average speed. Roger, her friend, also watch the same video at the average speed. If they both watched six of the same videos, what's the total number of hours they watched? When Lila watches the video at twice the normal speed, the video takes 100/2 = <<100/2=50>>50 hours. When she watches six such videos, the total number of video hours becomes 50*6 = <<50*6=300>>300 hours. Roger, her friend, watches 6 videos at the normal speed, which is 6*100 = <<6*100=600>>600 video hours. The total number of hours watched by the two is 600+300 = <<600+300=900>>900 hours. #### 900 As a freelancer, Katherine takes 20 hours to develop a website for her clients. Her junior, Naomi, takes 1/4 times more time to complete creating a similar website. If many clients required her to build their websites in a particular year, and she gave her junior 30 websites to develop, calculate the total number of hours Katherine's junior took to create the 30 websites. Katherine's junior takes 1/4*20 = <<1/4*20=5>>5 more hours to build a similar website as Katherine. The total number of hours Katherine's junior takes to build a website is 20+5 = <<20+5=25>>25 hours. If Katherine gave her junior 30 websites to build, her junior spent 30*25 = <<30*25=750>>750 hours on building the 30 websites. #### 750 George collected 50 marbles in white, yellow, green, and red. Half of them are white, and 12 are yellow. There are 50% fewer green balls than yellow balls. How many marbles are red? Half of the marbles are white, so there are 50 / 2 = <<50/2=25>>25 white marbles. Green marbles are only 50% as many as yellow marbles, so there are 50/100 * 12 = <<50/100*12=6>>6 green marbles. So currently we know that we have 25 + 12 + 6 = <<25+12+6=43>>43 marbles. The rest are red, so there are 50 - 43 = <<50-43=7>>7 red marbles. #### 7