James buys 3 CDs. Two of them are 1.5 hours each. The last one is twice that long. What is the combined length of the CDs?

How long is the long CD? ** The long CD is 1.5*2=

<<1.5*2=3>>3 hours How long are the shorter CDs? ** The two shorter CDs have a combined length of 1.5*2=<<1.5*2=3>>3 hours How long are the CDs in total? ** So in total the CDs had a length of 3+3= <<3+3=6>>6 hours #### 6 Uki owns a bakery. She sells cupcakes at $1.50 each, cookies at $2 per packet, and biscuits at $1 per packet. In a day, she can bake an average of twenty cupcakes, ten packets of cookies, and twenty packets of biscuits. How much will be her total earnings for five days? How much does Uki earn from selling 20 cupcakes? ** Uki earns 20 x $1.50 = $<<20*1.5=30>>30 in selling 20 cupcakes. How much does Uki earn from selling 10 packets of cookies? ** She earns 10 x $2 = $<<10*2=20>>20 for selling 10 packets of cookies, How much does Uki earn from selling twenty packets of biscuits? ** Additionally, she earns another 20 x $1 = $<<20*1=20>>20 for selling twenty packets of biscuits. How much will be her total earnings for five days? ** Thus, in a day, she earns an average of $30 + $20 + $20 = $70. Therefore, for five days, Uki earns 5 x $70 = $<<5*70=350>>350. " #### 350 John decides to learn how to play the piano. He buys a piano for $500. He then hires a teacher for 20 lessons at $40 per lesson but ends up getting a 25% discount. How much did everything cost? How much would the lessons cost normally? ** The normal price of the lessons would be 20*40=$<<20*40=800>>800 How much does the discount save him? ** The discount saves him 800*.25=$<<800*.25=200>>200 How much do the lessons cost him? ** So the lessons cost him 800-200=$<<800-200=600>>600 How much does everything cost? ** That means everything costs 500+600=$<<500+600=1100>>1100 #### 1100 Patrick is half the age of his elder brother Robert. If Robert will turn 30 after 2 years, how old is Patrick now? How old is Robert now? ** The age of Robert now is 30 - 2 = <<30-2=28>>28 years old. How old is Patrick now? ** So, Patrick is 28 / 2 = <<28/2=14>>14 years old. #### 14 On Monday, Matt worked for 450 minutes in his office. On Tuesday, he worked half the number of minutes he worked on Monday. On Wednesday, he worked for 300 minutes. How many more minutes did he work on Wednesday than on Tuesday. How many minutes did Matt work on Tuesday? ** On Tuesday Matt worked 450 minutes / 2 = <<450/2=225>>225 minutes. How many minutes did Matt work on Wednesday than on Tuesday? ** On Wednesday Matt worked 300 minutes - 225 minutes = <<300-225=75>>75 minutes more. #### 75 It takes David 10 minutes to wash 4 windows. David's house has 64 windows. How many minutes will it take David to wash all of the windows? How many units are in the house? ** It takes 10 minutes to wash 4 windows and he has 64 windows so that breaks down to 64/4 = 16 units How many minutes will it take David to wash all of the windows? ** It takes 10 minutes to wash a unit of windows and he has 16 units so 10*16 = <<10*16=160>>160 minutes #### 160 Anna baked 60 cupcakes. She gives away 4/5 of the cupcakes to her classmates. Of the remaining 1/5 of cupcakes, she eats 3 cupcakes. How many cupcakes does she have left? How many cupcakes does Anna have left after giving away 4/5 of the cupcakes? ** After giving away 4/5 of the cupcakes, Anna has 60 / 5 = <<60/5=12>>12 cupcakes How many cupcakes does Anna have left after eating 3 cupcakes? ** After eating 3 cupcakes, Anna has 12 - 3 = <<12-3=9>>9 cupcakes. #### 9 Nico borrows 3 books from the library on Monday. On Monday, he reads the first book with a total of 20 pages. On Tuesday, he reads the second book with a total of 12 pages. On Wednesday, he reads the third book. If he has read a total of 51 pages from Monday to Wednesday, how many pages did he read on Wednesday? How many pages does Nico read from Monday to Tuesday? ** From Monday to Tuesday, Nico reads a total of 20 + 12 = <<20+12=32>>32 pages. How many pages did Nico read on Wednesday? ** On Wednesday, he read a total of 51 - 32 = <<51-32=19>>19 pages. #### 19 When the strawberries at Fruity Farm are ready for harvest, Miguel charges each interested picker $4 to access the strawberry fields. Once there, people pick as many strawberries as they wish, and then take them to Miguel for weighing and pricing. This year, the standard price of a pound of strawberries is $20. Miguel is a very generous man. He deducts the entrance charge from the cost of the harvest. Sally, Jenny and Moses have just finished their strawberry picking and are headed home. They paid $128 for their harvest. How many pounds of strawberry did they pick? How much did they pay to enter the fields? ** To gain entry into the strawberry fields, Sally, Jenny and Moses paid a total of 4 * 3 = <<4*3=12>>12 dollars How much did they pay in total? ** This means that before Miguel applied the $12 discount, the cost was 128 + 12 = <<128+12=140>>140 dollars How many pounds of strawberries did they pick? ** We get the weight by dividing the cost by the price of strawberries per pound, 140/20 = <<140/20=7>>7 pounds #### 7 Daniela goes shopping during a sale. She finds out that the store has 40 percent off on shoes and 20 percent off dresses. If Daniela buys 2 pairs of shoes originally priced at $50 a pair and a dress originally priced at $100, how much money does she spend? How much do the shoes cost? ** Two pairs of shoes at $50 a pair costs $50 x 2 = $<<50*2=100>>100. How much does Daniela pay for the shoes? ** The shoes are discounted by 40 percent so she only pays 100 - 40 = <<100-40=60>>60 percent of the original price. How much do the shoes cost? ** Therefore the two pairs of shoes cost $100 x 0.60 = $<<100*0.60=60>>60. How much does Daniela pay for the dress? ** The dress is discounted by 20 percent so she only pays 100 - 20 = <<100-20=80>>80 percent of the original price. How much does Daniela pay for the dress? ** Therefore the dress costs $100 x 0.80 = $<<100*0.80=80>>80. How much does Daniela spend? ** In total Daniela spends $60 + $80 = $<<60+80=140>>140 for two pairs of shoes and a dress. #### 140