Mark is looking to buy a total of 12 pieces of fruit at the store. He has already chosen 3 apples. He has also selected a bunch of bananas containing 4 bananas. How many oranges does he need to pick out to have 12 total pieces of fruit?

How many pieces of fruit does Mark have? ** He has 3 apples and 4 bananas, so he has 3 + 4 =

<<3+4=7>>7 pieces of fruit. How many oranges does Mark need to pick out to have 12 total pieces of fruit? ** He needs to buy 12 fruit - 7 fruit = <<12-7=5>>5 oranges. #### 5 A mum ordered 80 cupcakes for her daughter's birthday. Half of them are gluten-free. There are 24 vegan cupcakes and half of them are also gluten-free. How many are non-vegan cupcakes that also contain gluten? How many gluten-free cupcakes are there? ** The gluten-free cupcakes are 80 / 2 = <<80/2=40>>40. How many vegan cupcakes with gluten are there? ** The vegan cupcakes with gluten are 24 / 2 = <<24/2=12>>12. How many non-vegan cupcakes with gluten are there? ** The non-vegan cupcakes with gluten are 40 - 12 = <<40-12=28>>28. #### 28 Sandy earns $15 per hour. She worked 10 hours on Friday with her best friend, 6 hours on Saturday alone and 14 hours on Sunday with her other co-workers. How much money did Sandy earn in all on Friday, Saturday and Sunday? How many hours did Sandy work in total on Friday, Saturday and Sunday? ** The total number of hours Sandy worked on Friday, Saturday and Sunday was 10 + 6 + 14 = <<10+6+14=30>>30 hours. How much money did Beth make in those 3 days? ** Beth made 30 × $15 = $<<30*15=450>>450 in those 3 days. #### 450 Monica made cookies for herself and her family. Her father ate 10 cookies and her mother ate half as much as the father. Her brother ate 2 more than her mother. How many cookies are left for Monica if she made 30 cookies in total? How many cookies did Monica's mother eat? ** Monica's mother ate half as many cookies as Monica's father, so she ate 10 cookies / 2 = <<10/2=5>>5 cookies. How many cookies did Monica's brother eat? ** Monica's brother ate 5 cookies + 2 cookies = <<5+2=7>>7 cookies. How many cookies are left for Monica? ** There were 30 cookies - 7 cookies - 5 cookies - 10 cookies = <<30-7-5-10=8>>8 cookies left for Monica. #### 8 Selene buys two instant cameras at $110 and three digital photo frames at $120 each. She gets a 5% discount on all the items she purchased. How much does she pay in all? How much do the two instant cameras cost? ** Two instant camera cost 2 x $110 = $<<2*110=220>>220. How much do the three digital photo frames cost? ** Three digital photo frames cost 3 x $120 = $<<3*120=360>>360. How much does Selene pay in all? ** Thus, the total amount is $220 + $360 = $<<220+360=580>>580. How much does Selene get a discount? ** So, Selena gets a discount of 5/100 x 580 = $<<5/100*580=29>>29. How much does Selene pay in all? ** Therefore, Selena pays a total of $580 - $29 = $<<580-29=551>>551. #### 551 A baker is making bread according to a recipe that requires him to use 3 eggs for every 2 cups of flour. If the baker wants to use up the 6 cups of flour he has remaining in his pantry, how many eggs will he need to use? How many cups of flour will the baker be using? ** If he uses 6 cups of flour, the baker will be making 6/2 = <<6/2=3>>3 times the normal amount that the recipe describes. How many eggs will the baker need to use? ** Thus, he must use 3*3 = <<3*3=9>>9 eggs. #### 9 Jason's stove catches on fire. Buying a replacement will cost $1200 and fixing the damage to the wall behind it will cost 1/6th as much. How much does he spend in total? How much does it cost to fix the wall? ** First find the cost of fixing the wall: $1200 * 1/6 = $<<1200*1/6=200>>200 How much does it cost in total? ** Then add the cost of the replacement stove to find the total cost: $200 + $1200 = $<<200+1200=1400>>1400 #### 1400 Max attended 40 college courses in 2 years. Sid attended four times as many college courses as Max in the same period. What's the total of college courses they both attended? How many college courses did Sid attend? ** If Sid attended four times as many college courses as Max, he attended 4*40=<<4*40=160>>160 college courses. How many college courses did Max and Sid attend? ** The total of college courses they both attended is 160+40 = <<160+40=200>>200 #### 200 There are three times as many girls as boys in the Biology class. The Physics class has 200 students. If the Biology class has half as many students as the Physics class, how many boys are in the Biology class? How many students are in the Biology class? ** The Biology class has 200/2=<<200/2=100>>100 students. How many boys are in the Biology class? ** The boys in the Biology class are 1/4*100=<<1/4*100=25>>25 students. #### 25 Dana Point beach has four times the number of sharks as Newport Beach. If Newport Beach has 22 sharks, how many sharks are there in total on the two beaches? How many sharks are there at Dana Point? ** Since Dana Point beach has four times the number of sharks in Newport beach, there are 4*22 = <<4*22=88>>88 sharks at Dana Point. How many sharks are there in total on the two beaches? ** In total, the two beaches have 88+22 = <<88+22=110>>110 sharks #### 110