In the beginning, Justine had 10 more rubber bands than Bailey but 2 fewer bands than Ylona. Bailey decided to give two bands each to Justine and Ylona so that he is left with only 8 rubber bands. How many rubber bands did Ylona have in the beginning?

Bailey gave 2 + 2 =

<<2+2=4>>4 bands. So Bailey had 8 + 4 = <<8+4=12>>12 bands in the beginning. Justine had 12 + 10 = <<12+10=22>>22 bands in the beginning. Thus, Ylona had 22 + 2 = <<22+2=24>>24 bands in the beginning. #### 24 Cheryl placed 300 strawberries into 5 buckets. After she did that she decided to take 20 out of each bucket so they wouldn't get smashed. How many strawberries were left in each bucket? Every bucket originally had 300/5= <<300/5=60>>60 strawberries After she removed 20 strawberries there were 60-20=<<60-20=40>>40 strawberries in each bucket. #### 40 Paul is working at a university. He is part of a big project, which involves 70 scientists in total. Half of them are from Europe and one-fifth are from Canada. The rest are from the USA. How many scientists in this project are from the USA? Of all the scientists taking part in the project, half of them are from Europe, which means 70 * 0.5 = <<70*0.5=35>>35 people. The number of researchers from Canada is 70 * 1/5 = <<70*1/5=14>>14 people. That means there are 70 - 35 - 14 = <<70-35-14=21>>21 researchers from the USA. #### 21 Tom decided to send his wife 2 dozen roses every day for the week. How many total roses did he send? He sent 2*12=<<2*12=24>>24 roses per day That means he sent 24*7=<<24*7=168>>168 roses for the month #### 168 Out of the 80 students who took the biology exam, only 2/5 of them managed to score 100%. If a score below 80% qualified as failing, and 50 percent of the remaining students who didn't score 100% managed to score over 80%, calculate the number of students who failed the exam. The number of students who scored 100% is 2/5*80 = <<2/5*80=32>>32 Out of the 80 students, 80-32 = <<80-32=48>>48 did not score 100%. If 50% of the students who did not score 100% managed to score over 80%, then 50/100*48 =<<50/100*48=24>>24 students scored over 80% The number of students who failed is 48-24 = <<48-24=24>>24 #### 24 Randy feeds his pigs 10 pounds of feed per pig per day. If Randy has 2 pigs, how many pounds of pig feed will Randy's pigs be fed per week? 2 pigs fed for 7 days is a total of 7*2=<<7*2=14>>14 feedings. At 10 pounds per feeding, this amounts to a total of 10*14=<<10*14=140>>140 pounds of pig feed per week. #### 140 Marjorie works as a baker. Every day, she makes twice as many cakes as she did the day before. On the sixth day, she makes 320 cakes. How many cakes did Marjorie make on the first day? As the number of cakes doubles each day, Marjorie must have made 320 cakes / 2 = <<320/2=160>>160 cakes on the fifth day. So on the fourth day, she must have made 160 cakes / 2 = <<160/2=80>>80 cakes. This means that on the third day, she made 80 cakes / 2 = <<80/2=40>>40 cakes. On the second day, she made 40 cakes / 2 = <<40/2=20>>20 cakes. So on the first day, she made 20 cakes / 2 = <<20/2=10>>10 cakes. #### 10 Susan has 21 cats and Bob has 3 cats. If Susan gives Robert 4 of her cats, how many more cats does Susan have than Bob? After giving away four of her cats, Susan has 21 - 4 = <<21-4=17>>17. Susan has 17 - 3 = <<17-3=14>>14 more cats than Bob #### 14 Albert noticed a flock of geese flying together in a V formation in the sky overhead. One half of the geese broke off from the formation, flew toward the earth, and landed in some trees. Then, 4 geese flew up, out of the trees, and joined those already flying in the air to make a new V formation in the sky. If the final number of geese flying in the V formation was 12, how many geese were in the first formation Albert noticed in the sky? If the final number of geese was 12, which included the 4 that joined from the trees, then before these 4 joined, there were 12-4=<<12-4=8>>8 geese in the sky. Since these 8 geese represent the half of geese remaining, then the initial formation contained 8*2=<<8*2=16>>16 geese. #### 16 Jenna is planning a road trip. She plans on driving the first 200 miles, and her friend will drive the last 100 miles. They plan on taking 2 30-minute breaks. If Jenna drives 50 miles per hour and her friend drives 20 miles per hour, how many hours will they spend on the road trip? Jenna will drive 200 miles at a rate of 50 miles per hour, so she will drive for 4 hours. Her friend will drive 100 miles at a rate of 20 miles per hour, so Jenna's friend will drive for 5 hours. They will spend a total of 60 minutes on breaks because 30 minutes + 30 minutes = <<30+30=60>>60 minutes. Thus, they will spend 1 hour on breaks because there are 60 minutes in an hour. The road trip will take a total of 1+4+5 = <<1+4+5=10>>10 hours. #### 10