Anna is making gingerbread cookies. She gives 6 of them red hats, 9 of them blue boots, and 3 of them both red hats and blue boots. What percentage of the gingerbread men have red hats?

The first step to find the total number of gingerbread men is to add the number with each decoration: 6 men + 9 men =

<<6+9=15>>15 men Then subtract the number of gingerbread men with both decorations to find the total number of gingerbread men: 15 men - 3 men = <<15-3=12>>12 men Then divide the number of gingerbread men with red hats by the total number and multiply by 100% to express the answer as a percentage: 6 men / 12 men * 100% = 50% #### 50 The class has to guess how many jellybeans are in a jar the teacher brought in. He lets 4 students make their guesses. The first thinks it contains 100 jellybeans. The second says there are 8 times as many. The third guesses 200 less than the third. The fourth takes the average of the first three guesses, and then adds 25 to it. How many jellybeans did the fourth student guess? The second student guessed 800 because 8 x 100 = <<800=800>>800 The third guessed 600 because 800 - 200 = <<800-200=600>>600 The total guesses of the first three is 1500 because 100 + 800 + 600 = <<100+800+600=1500>>1500 The average of the first three guesses is 500 because 1500 / 3 = <<1500/3=500>>500 The fourth student guessed 525 because 500 + 25 = <<500+25=525>>525 #### 525 The time Juan takes to grab his lunch from his office and back is half the time he takes to read a book. If he has a 4000-page book, how many pages does he read in an hour if he takes 4 hours to move from his office to grab lunch? If Juan takes 4 hours to move from his office to grab lunch, moving from his office and back takes 2*4=<<4*2=8>>8 hours. The time Juan takes to grab his lunch from his office and back is half the time he takes to read a book, meaning he reads a book in 8*2=<<8*2=16>>16 hours. If he has a 4000-page book, he will read 4000/16=<<4000/16=250>>250 pages in an hour. #### 250 A pie shop charges $5 for a slice of pie. They cut each whole pie into 4 slices. How much money will the pie shop make if they sell 9 pies? A pie contains 4 slices so the pie shop makes 5*4=$<<4*5=20>>20 for a pie. If they sell 9 pies, they make 9*20=$<<9*20=180>>180 #### 180 Sara sent letters to her friend in China every month. She sent 6 letters in January, 9 letters in February, and in March she sent triple the number of letters she sent in January. How many letters does Sara send? Combining January and February, Sara sent 6 + 9 = <<6+9=15>>15 letters. In March, she sent 3 * 6 = <<3*6=18>>18 letters. Altogether, Sara sent 15 + 18 = <<15+18=33>>33 letters. #### 33 The ski lift carries skiers all the way from the bottom of the mountain to the very top of the mountain, and then drops them off so they can ski back down the mountain. If it takes a skier 15 minutes to ride the lift from the bottom to the top of the mountain, and then it takes 5 minutes to ski back down the mountain, what is the most number of times a person can ski down the mountain in 2 hours? East trip up and back down the mountain takes 15+5=<<15+5=20>>20 minutes per trip. Two hours is 2*60=<<2*60=120>>120 minutes. Therefore, in 120 minutes, a skier can take 120/20=<<120/20=6>>6 trips up and back down the mountain. #### 6 Darius, Matt, and Marius are friends, who played table football. During all the games they played, Marius scored 3 points more than Darius, and Darius scored 5 points less than Matt. How many points did all three friends score together, if Darius scored 10 points? If Darius scored 10 points, then Marius scored 10 + 3 = <<10+3=13>>13 points in total. Darius scored 5 points less than Matt, so Matt scored 10 + 5 = <<10+5=15>>15 points in total. So all three friends gathered 13 + 15 + 10 = <<13+15+10=38>>38 points. #### 38 Annie was given a pack of crayons. The pack contained 21 crayons. She already had a box of 36 crayons in her locker. Her friend Bobby gave her half the amount she already had in her locker. She decided to give her sister Mary 1/3 of her total amount of crayons. How many crayons does she give to Mary? Annie starts with 21 + 36 = <<21+36=57>>57 crayons. Bobby ends up giving her 36 / 2 = <<36/2=18>>18 crayons. Annie now has a total of 57 + 18 = <<57+18=75>>75 crayons. She ends up giving Mary a total of 75 * (1 / 3) = <<75*(1/3)=25>>25 crayons. #### 25 John went on a mission that was supposed to take 5 days. Instead it took 60% longer. He then had to go on a second mission which took 3 days. How long was he on missions? The first mission took 5*.6=<<5*.6=3>>3 days longer than anticipated So it took 5+3=<<5+3=8>>8 days That means the two missions took 8+3=<<8+3=11>>11 days #### 11 Rachel earned $200 babysitting. She spent 1/4 of the money on lunch. She spent 1/2 of the money on a DVD. How much did Rachel have left? Rachel spent 1/4*200 = $<<200*1/4=50>>50 on lunch. Rachel spent 1/2*200 = $<<200*1/2=100>>100 on a DVD. Rachel has 200-50-100 = $<<200-50-100=50>>50 left. #### 50