While preparing for a meeting, Bill fills Dixie cups with water from out of a water cooler. The water cooler initially contains 3 gallons of water, and each Dixie cup holds 6 ounces of water. If Bill fills one cup of water per each meeting chair, and there are 5 rows of meeting chairs with 10 chairs in each row, then how many ounces of water will be left in the cooler after all cups have been are filled? (There are 128 ounces in a gallon.)

First find the total number of ounces in the water cooler: 3 gallons * 128 ounces/gallon =

<<3*128=384>>384 ounces Then find the total number of dixie cups Bill pours: 5 rows * 10 chairs/row = <<5*10=50>>50 chairs Then find the total number ounces Bill pours: 50 attendees * 6 ounces/attendee = <<50*6=300>>300 ounces Then subtract the amount of water Bill pours from the cooler from the initial amount to find the final amount: 384 ounces - 300 ounces = <<384-300=84>>84 ounces #### 84 There were 600 people in the stadium when the football game started. Before the game was over, one-fourth of the boys and one-eighth of the girls left early. How many people remained to see the end of the game if there were 240 girls at the beginning of the game? There were 600 - 240 = <<600-240=360>>360 boys at the beginning of the game. So, 360 x 1/4 = <<360*1/4=90>>90 boys left early. And 240 x 1/8 = <<240*1/8=30>>30 girls left early. A total of 90 + 30 = <<90+30=120>>120 people left early. Therefore, 600 - 120 = <<600-120=480>>480 people remained to see the end of the game. #### 480 Susie and Britney each keep chickens, of two different breeds. Susie has 11 Rhode Island Reds and 6 Golden Comets. Britney has twice as many Rhode Island Reds as Susie, but only half as many Golden Comets. How many more chickens are in Britney's flock than in Susie's? Britney has 11*2=<<11*2=22>>22 Rhode Island Reds. She has 6/2=<<6/2=3>>3 Golden Comets. She has 22+3=<<22+3=25>>25 total. Susie has 11+6=<<11+6=17>>17 total. Britney has 25-17=<<25-17=8>>8 more. #### 8 James takes up dancing for fitness. He loses twice as many calories per hour as he did when he was walking. He dances twice a day for .5 hours each time and he does this 4 times a week. He burned 300 calories an hour walking. How many calories does he lose a week from dancing? He burns 2*300=<<2*300=600>>600 calories an hour He dances for .5*2=<<.5*2=1>>1 hour per day So he burns 600*1=<<600=600>>600 calories per day So he burns 600*4=<<600*4=2400>>2400 calories per week #### 2400 When Betty makes cheesecake, she sweetens it with a ratio of one part sugar to four parts cream cheese, and she flavors it with one teaspoon of vanilla for every two cups of cream cheese. For every one teaspoon of vanilla, she uses two eggs. She used two cups of sugar in her latest cheesecake. How many eggs did she use? Betty used 2 cups of sugar in her cheesecake, so she used 2 * 1 = <<2*1=2>>2 times her ratio. Thus, she used 2 * 4 = <<2*4=8>>8 cups of cream cheese. She uses 1 teaspoon of vanilla for 2 cups of cream cheese, so she used 8 / 2 = 4 teaspoons of vanilla. For each teaspoon of vanilla, she uses 2 eggs, so she used 2 * 4 = <<2*4=8>>8 eggs. #### 8 The difference between the number of boys and girls in a tree planting event is 400. If there are 600 boys at the event, and the number of girls is more than the number of boys, what's 60% of the total number of boys and girls at the event? If there are 600 boys at the event, and the difference between boys and girls is 400, there are 600+400=<<600+400=1000>>1000 girls. The total number of boys and girls at the event is 1000+600=<<1000+600=1600>>1600 60% of the total number of boys and girls at the event is 60/100*1600=<<60/100*1600=960>>960 #### 960 Alia has 2 times as many markers as Austin. Austin has one-third as many markers as Steve does. If Steve has 60 markers, how many does Alia have? Austin has 60/3=<<60/3=20>>20 markers Alia has 20*2=<<20*2=40>>40 markers #### 40 John buys a gaming PC for $1200. He decides to replace the video card in it. He sells the old card for $300 and buys a new one for $500. How much money did he spend on his computer, counting the savings from selling the old card? He spent an extra 500-300=$<<500-300=200>>200 on the video card That means the total cost was 1200+200=$<<1200+200=1400>>1400 #### 1400 Marge planted 23 seeds in her garden. Five of the seeds never grew into plants. A third of the remaining seeds grew, but the plants were eaten by squirrels and rabbits. A third of the number of uneaten plants were strangled by weeds. Marge pulled two weeds, but liked the flowers on one weed and let the plant grow as part of her garden. How many plants did Marge end up with? Marge had 23 - 5 = <<23-5=18>>18 seeds grow into plants. Rabbits ate 18 / 3 = <<18/3=6>>6 plants. There were 18 - 6 = <<18-6=12>>12 plants left. Weeds strangled 12 / 3 = <<12/3=4>>4 plants. She had 12 - 4 = <<12-4=8>>8 plants left. Marge kept 1 weed, so she ended up with 8 + 1 = <<8+1=9>>9 plants. #### 9 In a block of flats, there are 120 apartments. 85% of them have at least 1 resident, while 60% of the apartments have at least two residents. How many apartments have only one resident? At least one person lives in 85/100 * 120 = <<85/100*120=102>>102 apartments. At least two persons live in 60/100 * 120 = <<60/100*120=72>>72 apartments. So in every of the 102 - 72 = <<30*1=30>>30 apartments, only one person is living. #### 30