Hallie borrows a book from the library. She reads the entire book in four days. She read 63 pages the first day. On the second day, she read twice the number of pages that she'd read on day one. On the third day, she read 10 mores pages than she read on day two. If the book is 354 pages long, how many pages did she read on the fourth day?

On day two, she read 63 * 2 =

<<63*2=126>>126 pages. On day three, she read 126 + 10 = <<126+10=136>>136 pages. On day four, she read 354 - 63 - 126 - 136 = <<354-63-126-136=29>>29 pages to finish the book. #### 29 Pima invested $400 in Ethereum. In the first week, it gained 25% in value. In the second week, it gained an additional 50% on top of the previous gain. How much is her investment worth now? For the first week, her investment gain is $400 * 25% = $<<400*25*.01=100>>100. This leaves her investment with a value of $400 + $100 = $<<400+100=500>>500. For the second week, her investment increased by $500 * 50% = $<<500*50*.01=250>>250. Pima's investment in Ethereum is now worth a total of $500 + $250 = $<<500+250=750>>750. #### 750 Tom goes to a combined undergrad and Ph.D. program. It takes 3 years to finish the BS and 5 years to finish the Ph.D. Tom finishes it in 3/4ths the time. How long does it take for him to finish? The program normally takes 3+5=<<3+5=8>>8 years So he manages to finish in 8*3/4=<<8*3/4=6>>6 years #### 6 Kate wants to buy a special pen as a gift for her friend. The pen costs $30, and Kate only has money for a third of that amount. How much more money does she need to buy the pen? Currently, Kate has only 1/3 * 30 = $<<1/3*30=10>>10. That means Kate needs 30 - 10 = $<<30-10=20>>20 more to buy the pen. #### 20 Solomon bought a dining table at a 10% discount and paid the sale price of $450. What was the original price of the dining table? Since there was a 10% discount, this means that Solomon only paid 100% - 10% = 90% of the original price. The 90% is represented by $450, so 1% is equal to $450/90 = $<<450/90=5>>5. Therefore, the original price of the dining table is $5 x 100 =$<<5*100=500>>500. #### 500 Mr. Sergio is a fruit grower producing apples, mangoes and oranges. In a particular season, the total produce of apples was twice the total produce of mangoes, and the total produce of oranges was 200 kg more than that of mangoes. If his farm produced 400 kg of mangoes and he sold the fruits at $50 per kg, calculate the total amount of money he got in that season. If the total production of mangoes was 400, then orange production was 400+200 = <<400+200=600>>600 kg of oranges. Since apple production was twice the total production of mangoes, Mr. Sergio had 2*400 = <<2*400=800>>800 kg of apples. The total quantity of fruits produced at Mr. Sergio's farm is 800 kg of apples+600 kg of oranges + 400 kg of mangoes = <<800+600+400=1800>>1800 kg of fruits. If Mr. Sergio sold the fruits at $50 per kg, his total income from the sales is 1800*$50 = $<<1800*50=90000>>90000. #### 90000 Two-thirds of the class have brown eyes. Half of the students with brown eyes have black hair. If there are 6 students in the class with brown eyes and black hair, how many students are there in total? There are 6 * 2 = <<6*2=12>>12 students with brown eyes and hair of any color. There are 12 * 3/2 = <<12*3/2=18>>18 students in total. #### 18 Nora's mother tells her to go and pick oranges from their farm. She picks 80 oranges from one tree, 60 from another tree, and 120 from the third tree. What's the total number of oranges she picked? After picking 80 oranges from the first tree and 60 oranges from the second tree, she has 80+60 = <<80+60=140>>140 oranges. When she adds 120 more oranges from the third tree, she has 140+120 = <<140+120=260>>260 oranges. #### 260 Emma bought 3 dozens of macarons in addition to her 10 pieces of macarons for a party. If 15 pieces of macarons are left over, how many pieces of macarons were eaten? Three dozens of macarons are equal to 3 x 12 = <<3*12=36>>36 pieces of macarons. So Emma has a total of 36 + 10 = <<36+10=46>>46 pieces of macarons for the party. Therefore, 46 - 15 = <<46-15=31>>31 pieces of macarons were eaten. #### 31 Victor, Austin, and Brian made traps to catch shrimp. Victor's trap caught 26 shrimp and Austin's trap caught 8 less than Victor's. Brian's trap caught half of Victor and Austin's total number of shrimp. If the boys then sold their shrimp for $7 for every 11 tails of shrimp and then divided their earnings equally amongst themselves, how much money does each boy make? Austin's trap caught 26 - 8 = <<26-8=18>>18 shrimp. Together, Victor and Austin's traps caught 18 + 26 = <<18+26=44>>44 shrimp. Brian's trap caught 44/2 = <<44/2=22>>22 shrimp In total, they caught 26 + 18 + 22 = <<26+18+22=66>>66 shrimp. They were able to sell 66/11 = <<66/11=6>>6 sets of shrimp. They made a total of 6 x $7 = $<<6*7=42>>42 Each boy made $42/ 3 = $<<42/3=14>>14 #### 14