Oprah has 3500 cars in her collection. If the average number of cars she gives away per year is 50, how many years will it take to reduce her car collection to 500?

If Oprah wants to have 500 cars left, she will have to give away 3500-500 =

<<3500-500=3000>>3000 cars. Since the average number of cars she gives away per year is 50, it will take her 3000/50 = <<3000/50=60>>60 years to give away enough cars to have 500 left over. #### 60 Megan’s grandma gave her $125 to start a savings account. She was able to increase the account by 25% from funds she earned babysitting. Then it decreased by 20% when she bought a new pair of shoes. Her final balance is what percentage of her starting balance? Megan started with $125 and increased it by 25%, so $125 + (0.25)125 or $125 + $31.25 = $<<125+31.25=156.25>>156.25. Then the balance decreased by 20%, so $156.25 – (0.20)156.25 or $156.25 - $31.25 = $<<156.25-31.25=125>>125. $125 is the balance Megan started with, so her final balance is 100% of the starting balance. #### 100 Bill's roof can bear 500 pounds of weight. If 100 leaves fall on his roof every day, and 1000 leaves weighs 1 pound, how many days will it take for his roof to collapse? First, find how many leaves the roof can hold: 500 pounds * 1000 leaves/pound = <<500*1000=500000>>500000 leaves Then divide that by the number of leaves that fall each day to find how many days before the roof collapses: 500000 leaves / 100 leaves/day = <<500000/100=5000>>5000 days #### 5000 John wants to lose weight. He eats 1800 calories a day and burns 2300 a day. If he needs to burn 4000 calories to lose 1 pound how many days will it take to lose 10 pounds? He burns 2300-1800=<<2300-1800=500>>500 calories a day He needs to burn 4000*10=<<4000*10=40000>>40,000 calories to hit his goal That means it will take him 40,000/500=<<40000/500=80>>80 days #### 80 Dani has 3 cats; Binkie, Frankie and Spaatz. Each cat has a collar decorated with gemstones. Binkie has four times as many gemstones on his collar as does Frankie but Spaatz has two less than half as many gemstones on her collar as does Frankie. If Spaatz has 1 Gemstone on her collar, how many gemstones does Binkie have on his collar? If Spaatz has 2 less than half the number of gemstones as does Frankie, then half as many as Frankie is 1+2=3 gemstones If 3 is half the number of gemstones on Frankie's collar, then Frankie has 3*2=<<3*2=6>>6 gemstones. If Binkie has 4 times as many gemstones as Frankie, then Binkie has 4*6=<<4*6=24>>24 #### 24 Mary has 300 sheep and Bob has double the number of sheep as Mary plus another 35. How many sheep must Mary buy to have 69 fewer sheep than Bob? Bob has (300*2) + 35 = <<300*2+35=635>>635 sheep For Mary to have 69 sheep fewer than Bob she must own 635 – 69 = 566 sheep As Mary has already 300 sheep she must buy 566 – 300 = <<566-300=266>>266 sheep #### 266 An apple tree produces 40 apples in its first year. The second year the apple tree produces 8 more than double the amount of apples that it produced the first year, and the third year production went down by a fourth due to an insect infestation. How many apples did the tree produce in total in the first three years? First Year:40 apples Second Year:8+2(40)=88 apples Third year:88-88/4=<<88-88/4=66>>66 apples Total 40+88+66=<<40+88+66=194>>194 apples #### 194 Mason is a caterer packing up silverware and plates for a big corporate event. Each piece of silverware weighs 4 ounces, and there are three pieces of silverware per setting. Each plate weighs 12 ounces, and there are two plates per setting. If Mason needs enough settings for 15 tables with 8 settings each, plus 20 backup settings in case of breakage, how many ounces will all the settings weigh? First find the total weight of the silverware per setting: 4 ounces/piece * 3 pieces/setting = <<4*3=12>>12 ounces/setting Then find the total weight of the plates per setting: 12 ounces/plate * 2 plates/setting = <<12*2=24>>24 ounces/setting Then add those two amounts to find the total weight per setting: 12 ounces/setting + 24 ounces/setting = <<12+24=36>>36 ounces/setting Then multiply the number of tables by the number of settings per table to find the number of table settings: 15 tables * 8 settings/table = <<15*8=120>>120 settings Then add the 20 backup settings to find the total number of settings: 120 settings + 20 settings = <<120+20=140>>140 settings Then multiply the total number of settings by the weight per setting to find the total weight: 140 settings * 36 ounces/setting = <<140*36=5040>>5040 ounces #### 5040 Ali and Ernie lined up boxes to make circles. Ali used 8 boxes to make each of his circles and Ernie used 10 for his. If they had 80 boxes to begin with and Ali makes 5 circles, how many circles can Ernie make? Ali made 5 circles with 8 boxes each so he used 5*8 = <<5*8=40>>40 boxes There were 80 boxes to start with so now there are 80-40 = <<80-40=40>>40 boxes left Ernie used 10 boxes to make one circle so with 40 boxes he can make 40/10 = <<40/10=4>>4 circles #### 4 Luke takes fifty more than five times as many grape jelly beans as vanilla jelly beans. If there are 120 vanilla jelly beans, how many jelly beans are there in total? Luke takes 5*120 = <<5*120=600>>600 grape jelly beans, five times the vanilla jelly beans there are? Luke's total number of grape jelly beans is fifty more than five times the number of vanilla jelly beans, a total of 600+50 = 650 In total, there are 650+120 = <<650+120=770>>770 jelly beans. #### 770