Sarah is checking out books from the library to read on vacation. She can read 40 words per minute. The books she is checking out have 100 words per page and are 80 pages long. She will be reading for 20 hours. How many books should she check out?

Each book has 8,000 words because 100 x 80 =

<<100*80=8000>>8,000 She can finish each book in 200 minutes because 8,000 / 40 = <<8000/40=200>>200 She will be reading for 1,200 minutes because 20 x 60 = <<20*60=1200>>1,200 She needs to check out 6 books because 1,200 / 200 = <<6=6>>6 #### 6 Tim takes his 3 children trick or treating. They are out for 4 hours. Each hour they visited 5 houses. Each house gives 3 treats per kid. How many treats do his children get in total? They visit 4*5=<<4*5=20>>20 houses That means each child get 20*3=<<20*3=60>>60 treats So in total they get 60*3=<<60*3=180>>180 treats #### 180 Kekai's family is having a garage sale. Kekai sells 5 shirts and 5 pairs of pants. Each shirt sells for $1, and each pair of pants sells for $3. If Kekai gives his parents half of the money he earns from selling his clothes, how much money does Kekai have left? From selling his shirts, Kekai makes 5 * $1 = $<<5*1=5>>5 From selling his pants, Kekai makes 5 * $3 = $<<5*3=15>>15 The total amount of money Kekai earns is $5 + $15 = $<<5+15=20>>20 Since Kekai gives half of the money to his parents, he has $20 / 2 = $<<20/2=10>>10 left #### 10 Forest and his friends have prepared a birthday cake for their friend Juelz having 240 cake pieces. After singing the birthday song, they ate 60% of the cake's pieces, and later, Juelz divided the remaining pieces among his three sisters. What is the number of pieces of cake each sister received? If they ate 60% of the pieces of cake, the friends ate 60/100 * 240 pieces = <<60/100*240=144>>144 pieces of the cake. The total number of pieces remaining is 240 pieces - 144 pieces = <<240-144=96>>96 pieces When Juelz divided the remaining pieces of cake to his sisters, each sister received 96 pieces / 3 sisters = <<96/3=32>>32 pieces/sister #### 32 A coach placed 15 tennis balls and 5 soccer balls each into 5 baskets. He gave 5 of his students a short period of time to remove as many balls each from a basket as they could. 3 of them removed 8 balls each and the other 2 removed a certain number of balls each. If a total of 56 balls are still in the baskets, how many balls did the other 2 students each remove? Combining the tennis and soccer balls, there are 15+5=<<15+5=20>>20 balls in each basket There are 5 baskets, hence 5*20=<<5*20=100>>100 balls in total 3 students removed 8 balls each, they removed 3*8=<<3*8=24>>24 balls From the total number of balls, they left 100-24=<<100-24=76>>76 balls There are 56 balls left so the other 2 students must have removed a total of 76-56=20 balls This means that each of these 2 students removed 20/2=<<20/2=10>>10 balls. #### 10 Sam went for a run in the morning. In the afternoon, he went grocery shopping and walked twice the distance through the store as he had run that morning. That evening, he went on a bike ride with his family and biked for 12 miles. In all, he went 18 miles that day. How many miles was Sam’s morning run? Let X be the distance Sam ran. His walk through the store was twice the distance of his run, so his walk was 2X. He biked for 12 miles and went 18 miles in all, so he walked and ran 18 - 12 = <<18-12=6>>6 miles. Thus, his walk and run together were X + 2X = 3X = <<6=6>>6 miles. Thus, he ran X = 6 / 3 = <<6/3=2>>2 miles. #### 2 Shane prepares sandwiches for the Boy Scouts. He buys 2 packages of sliced bread containing 20 slices each, and he also buys 2 packages of sliced ham containing 8 slices each. Shane will make as many sandwiches as he can according to the ham he has. How many slices of bread will he have leftover? With 2 packages of sliced ham, Shane has 2 * 8 = <<2*8=16>>16 slices of ham. Since he has 16 slices, Shane makes 16 sandwiches. With 2 packages of sliced bread, he has 20 * 2 = <<20*2=40>>40 slices of bread. To make the 16 sandwiches, he needs 16 * 2 = <<16*2=32>>32 slices of bread. He has 40 - 32 = <<40-32=8>>8 slices of bread leftover. #### 8 A couple agreed to split their expenses equally, including the salary of their house help. While doing her job, the house help had an accident; thus, she underwent a medical procedure which cost her $128. The couple decided to pay half of the medical expenses and the other half will be deducted from her $160 salary. If the husband paid for the entire half of the hospital bill, how much does he still need to pay so that they split the expenses for the house help equally? The amount that the couple would cover for the hospital bill is $128/2 = $<<128/2=64>>64. The couple's total expenses (salary and hospital bill) is $160 + $64 = $<<160+64=224>>224. So each of them should give $224/2 = $<<224/2=112>>112 in total. Since the husband paid the entire half of the hospital bill already ($64), he still needs to pay $112 - $64 = $<<48=48>>48. #### 48 Casey is going to stay at a motel while she works her summer job as a ski instructor. The hotel charges $280/week or $1000/month. If Casey will be staying 3 months, each with exactly 4 weeks, how much money does she save by paying monthly? First find the number of weeks Casey stays: 3 months * 4 weeks/month = <<3*4=12>>12 weeks Then multiply that number by the weekly rate to find how much she would pay weekly: 12 weeks * $280/week = $<<12*280=3360>>3360 Then multiply the number of months she stays by the monthly rate to find how much she pays monthly: $1000/month * 3 months = $<<1000*3=3000>>3000 Then subtract that number from the total amount she pays if she pays weekly to find her savings: $3360 - $3000 = $<<3360-3000=360>>360 #### 360 400 adults and 200 children go to a Broadway show. The price of an adult ticket is twice that of a child's ticket. What is the price of an adult ticket if the total amount collected is $16,000? Let X be the price of a child ticket. So the price of an adult ticket is X*2. We know from the problem that 400*X*2 + 200*X = 16,000. After multiplying, we have 800*X+ 200*X = 16,000. Combining like terms, we have 1000* X = 16,000. Dividing both sides by 1000, we have X = $16. The price of an adult ticket is $16 * 2 = $<<16*2=32>>32. #### 32