Edna made cookies for all of her neighbors and left the cookies outside for them to take. She made 150 cookies so her 15 neighbors could get 10 cookies each. However, the neighbor who arrived last told Edna there were only 8 cookies left. Edna thinks it was Sarah who took too many cookies. If all the other neighbors took the correct amount of cookies, how many cookies did Sarah take?
Sarah and the final neighbor took the wrong amount, which means that 15 neighbors – 1 Sarah – 1 final neighbor = 13 neighbors took 10 cookies each.
This is a total of 13 neighbors * 10 cookies =
<<13*10=130>>130 cookies taken by the first 13 neighbors. There were only 8 cookies left, so that means the first 13 neighbors and Sarah took a total of 150 – 8 = 142 cookies. So Sarah must have taken 142 – 130 = <<142-130=12>>12 cookies. #### 12 John builds a box. The box is 26 inches by 26 inches by 14 inches. The walls are 1 inch thick on each side. How much is the internal volume in cubic feet? The walls take away 2*1=<<2*1=2>>2 inches from each dimension So the longer sides are 26-2=<<26-2=24>>24 inches That is 24/12=<<24/12=2>>2 feet The smaller dimension is 14-2=<<14-2=12>>12 inches That is 12/12=<<12/12=1>>1 foot So the internal volume is 2*2*1=<<2*2*1=4>>4 cubic feet #### 4 Tommy has 10 more sheets than Jimmy does. If Jimmy has 32 sheets, how many more sheets will Jimmy have than Tommy if his friend Ashton gives him 40 sheets. If Jimmy has 32 sheets, and Tommy has 10 more sheets than Jimmy does, Tommy has 10+32 = <<32+10=42>>42 sheets. When Ashton gives Jimmy 40 sheets, his total number of sheets increases to 32+ 40 = <<32+40=72>>72 The number of sheets that Jimmy now have than Tommy is 72-42 = <<72-42=30>>30 #### 30 A book has 8 chapters. Beth has read 2 chapters in 3 hours. If she continues reading at that rate, in how many hours will she be able to finish reading the remaining chapters? Beth still needs to read 8 - 2 = <<8-2=6>>6 chapters. She can read 1 chapter in 3/2 = <<1.5=1.5>>1.5 hours. Therefore, she will be able to finish reading the remaining chapters in 1.5 x 6 = <<1.5*6=9>>9 hours. #### 9 Bob is building a garden on his land, and he wants it to be fenced in to keep out varmints. The garden is a rectangular plot 225 feet long by 125 feet wide. He also wants to have a small 3-foot wide gate to walk through and a larger 10-foot wide gate to move his gardening equipment through. How much fencing is Bob going to need to fence in his garden, taking into account the two gates? The perimeter of the garden is 2 * 225 + 2 * 125 = 450 + 250 = <<2*225+2*125=700>>700 feet. Minus the two gates, he will need at least 700 - 3 - 10 = <<687=687>>687 feet of fencing. #### 687 Abe owns a restaurant. Every month he spends a third of his budget on food, a quarter of his budget on restaurant supplies, and the rest of his budget on employee wages. If his budget is $3000 and he uses it up every month, how much is he spending on wages? Abe is spending a third of his budget on food, so he spends $3000 / 3 = $<<3000/3=1000>>1000 on food. He spends a quarter of his budget on restaurant supplies, so he spends $3000 / 4 = $<<3000/4=750>>750 on supplies. Thus, he spends $3000 - $1000 - $750 = $<<3000-1000-750=1250>>1250 on employee wages every month. #### 1250 Holly wants to plant a wall of privacy trees along her fence line. Her fence is 25 yards long. At maturity, the trees she wants to plant will measure 1.5 feet wide. Right now, these trees are on sale for $8.00 apiece. How much will it cost her to plant a row of the trees to run the length of her fence? 3 feet are in 1 yard and her fence is 25 yards long so her fence is 3*25 = <<3*25=75>>75 feet long At maturity these trees will measure 1.5 feet and she needs them to run along her 75-foot fence so she needs 75/1.5 = <<75/1.5=50>>50 trees The trees cost $8.00 apiece and she needs 50 so 8*50 = $<<8*50=400.00>>400.00 worth of trees #### 400 Sheila, Purity, and Rose want to rent a house. Sheila has offered to pay five times Purity’s share of the rent. Rose can only afford thrice what Purity pays. If Rose’s share is $1,800, what is the total house rent? Purity will pay a third of Rose's share, which translates to 1800/3 = <<1800/3=600>>600 dollars. Sheila has offered to pay 5 * 600 = <<5*600=3000>>3000 dollars Combining everyone’s share of the rent will give a total of 600 + 3000 + 1800 = <<600+3000+1800=5400>>5400 dollars #### 5400 James needs 200 blueberries to make a pint of blueberry jam and then a quart of blueberry jam to make a blueberry pie. If there are two pints per quart, how many blueberries does James need to pick to make 6 pies? First find the total number of blueberries needed for one pie: 200 blueberries/pint * 2 pints/pie = 400 blueberries/pie Then multiply that number by the number of pie to find the total number of blueberries James need: 400 blueberries/pie * 6 pies = <<400*6=2400>>2400 blueberries #### 2400 In a national park, the number of redwoods is 20% more than the number of pines. If there are 600 pines in the national park, calculate the total number of pines and redwoods that are there. If there are 600 pines, there are 20/100*600 = <<600*20/100=120>>120 more redwoods than pine trees in the national park. In total, there are 120+600 = <<120+600=720>>720 redwoods in the national park. Altogether, there are 720+600 = <<720+600=1320>>1320 pines and redwoods in the national park. #### 1320