Alicia has 20 gumballs. Pedro has that many gumballs plus an additional number of gumballs equal to three times the number Alicia has. They put their gumballs in a bowl, and later Pedro takes out 40% of the gumballs to eat. How many gumballs are remaining in the bowl?

If Pedro has three times more gumballs than Alicia, he has 3 * 20 gumballs =

<<3*20=60>>60 gumballs more In total, Pedro has 20 gumballs + 60 gumballs = <<20+60=80>>80 gumballs When they put their gumballs together, the total number of gumballs in the bowl becomes 20 gumballs + 80 gumballs = <<20+80=100>>100 gumballs Pedro takes out 40% of the gumballs which is 40/100 * 100 gumballs = <<40/100*100=40>>40 gumballs. The number of gumballs remaining is 100 gumballs - 40 gumballs = <<100-40=60>>60 gumballs #### 60 A group of science students went on a field trip. They took 9 vans and 10 buses. There were 8 people in each van and 27 people on each bus. How many people went on the field trip? The vans held 9 vans * 8 people = <<9*8=72>>72 people. The buses held 10 buses * 27 people = <<10*27=270>>270 people. The total number of people on the field trip is 72 + 270 = <<72+270=342>>342 people. #### 342 Wynter went to her local town bike shop to buy her sister a bicycle as her birthday gift. While at the shop, Wynter counted 50 bicycles and 20 tricycles. How many wheels in total did the vehicles she saw have? The bicycles had a total of 50 bikes * 2 wheels/bike = <<50*2=100>>100 wheels. There were 20 trikes * 3 wheels/trike = <<20*3=60>>60 wheels for the tricycles. The total number of wheels is 100 wheels + 60 wheels = <<100+60=160>>160 wheels #### 160 Amber and Josh are flying to France for vacation. Their flight leaves at 8:00 pm and as an international flight, it's recommended that they check in 2 hours early. It will take 45 minutes to drive to the airport and another 15 minutes to park their vehicle and make their way to the terminal. What is the latest time they can leave their house to make it to the airport in time? It will take 45 minutes to drive to the airport and 15 minutes to park so that's 45+15 = <<45+15=60>>60 minutes (1 hour) They need to check in 2 hours early and it will 1 hour to drive there and park so that's 2+1 = <<2+1=3>>3 hours Their flight leaves at 8:00 pm and it will take 3 hours to drive there and check in so the latest they can leave is 8-3 = <<8-3=5>>5:00 pm #### 5 This weekend's football game matched the Seattle Seahawks with the Denver Broncos. The final score was 37-23, with the Seattle Seahawks taking the win. If a touchdown is worth 7 points and a field goal is worth 3 points, how many touchdowns did the Seattle Seahawks score if they scored 3 field goals during the game? The Seattle Seahawks scored 3 field goals during the length of the game and each field goal is worth 3 points, so 3 * 3=<<3*3=9>>9 points were made by the Seattle Seahawks from field goals. The Seattle Seahawks won so their total points would be 37 with 9 of those points accrued through the scoring of field goals, which makes 37-9=<<37-9=28>>28 points left to be scored by touchdowns. There are 28 points scored by touchdowns and each touchdown is worth 7 points, so this means that 28/7=<<28/7=4>>4 touchdowns were scored by the Seattle Seahawks throughout the game. #### 4 John is 15 cm taller than Lena and 6 cm shorter than Rebeca. If John has a height of 152 cm, what is the height of Lena and Rebeca together? Lena is 152 cm - 15 cm = <<152-15=137>>137 cm tall Rebeca is 152 cm + 6 cm = <<152+6=158>>158 cm tall So, the total height of Lena and Rebeca would be 137 cm + 158 cm = <<137+158=295>>295 cm. #### 295 Jason has a moray eel that eats 20 guppies a day and 5 betta fish who each eat 7 guppies a day. How many guppies per day does she need to buy? First find the total number of guppies the betta fish need: 5 fish * 7 guppies/fish = <<5*7=35>>35 guppies Then add the number of guppies the eel needs to find the total number needed: 35 guppies + 20 guppies = <<35+20=55>>55 guppies #### 55 Betty has a tray of cookies and a tray of brownies. She has a real sweet tooth and eats 3 cookies a day and 1 brownie a day. If she starts with 60 cookies and 10 brownies, how many more cookies than brownies does she have after a week of eating like this? First we find how many cookies Betty will eat in a week by multiplying her daily amount by 7, meaning 7*3=<<21=21>>21 cookies eaten in a week. We repeat this for the brownies, finding she eats 7*1=<<7*1=7>>7 brownies in a week. We subtract the 21 cookies from the original amount of 60, finding 60-21= <<60-21=39>>39 cookies remaining. We repeat this step for the brownies, finding 10-7= <<10-7=3>>3 brownies remaining. In the end, therefore, Betty has 39-3= <<39-3=36>>36 more cookies than brownies. #### 36 A fifth-grade class went on a field trip to the zoo, and their class of 10 students merged with another class with the same amount of students. 5 parents offered to be a chaperone, and 2 of the teachers from both classes will be there too. When the school day was over, the students could choose to go home and 10 of them left. Two of the chaperones were parents in that group, so they left as well. How many individuals were left at the zoo? A total of 10*2=<<10*2=20>>20 students went on the field trip. Some chaperones showed up, letting the group grow to 20+5=<<20+5=25>>25 individuals. The teachers had to come as well, making the group as big as 25+2=<<25+2=27>>27 individuals. When the school day ended, 27-10=<<27-10=17>>17 individuals were left. A couple of chaperones followed suit, leaving 17-2=<<17-2=15>>15 people at the zoo. #### 15 Tara has a shoebox that is 4 inches tall and 6 inches wide. She puts a square block inside that is 4 inches per side. How many square inches of the box are left uncovered? The shoebox is 24 square inches because 4 x 6 = <<4*6=24>>24 The block is 16 square inches because 4 x 4 = <<4*4=16>>16 There are 8 square inches uncovered because 24 - 16 = <<24-16=8>>8 #### 8