Forty percent of the students have elected to learn from home during the pandemic. The remaining students are divided into two equal groups, only one of which is physically in school on any day. What percent of students are present in school?

100-40=

<<100-40=60>>60 percent of students are remaining. 60/2=<<60/2=30>>30 percent are present in school. #### 30 Sam, Sid, and Steve brought popsicle sticks for their group activity in their Art class. Sam has thrice as many as Sid, and Sid has twice as many as Steve. If Steve has 12 popsicle sticks, how many popsicle sticks can they use for their Art class activity? Sid has 12 x 2 = <<12*2=24>>24 sticks. Sam has 24 x 3 = <<24*3=72>>72 sticks. Thus, they have 24 + 72 + 12 = <<24+72+12=108>>108 popsicle sticks. #### 108 John buys 1000 balloons. Each balloon holds 10 liters of air. If he buys 500-liter tanks of gas, how many tanks does he need to buy to fill all the balloons? He needs 1000*10=<<1000*10=10000>>10000 liters of gas So he needs 10000/500=<<10000/500=20>>20 tanks #### 20 Nadia walked 18 kilometers, which was twice as far as Hannah walked. How many kilometers did the two girls walk in total? Hannah = (1/2) 18 = 9 9 + 18 = <<9+18=27>>27 km Together they walked 27 kilometers. #### 27 Eric has 20 marbles. He has 12 white marbles, 6 blue marbles, and the rest are green marbles. How many green marbles does Eric have? Eric has a total of 12 + 6 = <<12+6=18>>18 white and blue marbles. Thus, he has 20 - 18 = <<20-18=2>>2 green marbles. #### 2 Lana and her friends go to a theater on the weekend to watch a new play Joan told them was live. When they arrived, Lana saw 100 cars in the front parking lot. She saw two times more vehicles at the back than there were in the front parking lot. If the total number of cars at the end of the play was 700, how many more cars packed into the parking lot during the play? The number of cars in the back parking lot was 100*2 = <<100*2=200>>200 times more than those in the front parking lot. There were 200+100 = <<200+100=300>>300 cars in the back parking lot. A total of 300+100 = <<300+100=400>>400 cars were present before the play began The total number of cars that parked in the theater during the play is 700-400 = <<700-400=300>>300 cars #### 300 If a solver flips a coin 211 times and gets a head on 65 of the flips, how many more tails than heads did he get? If the solver got a head in 65 of the 211 flips, he got 211-65 =<<211-65=146>>146 tails The number of tails than he got more than head is 146-65=<<146-65=81>>81 #### 81 Mariel is a dog walker. While walking her pack of dogs, she gets tangled up in the leashes of another dog walker and their 3 dogs. There are 36 legs tangled up in leashes. How many dogs is Mariel walking? There are 2 dog walkers and they each have 2 legs so that's 2*2 = <<2*2=4>>4 legs The other dog walker is walking 3 dogs that each have 4 legs so that's 3*4 = <<3*4=12>>12 legs The dog walkers have 4 legs and the other dogs have 12 legs for a total of 4+12 = <<4+12=16>>16 legs There are 36 legs total and 16 belong to the dog walkers and 3 dogs so that leaves 36-16 = <<36-16=20>>20 legs Dogs have 4 legs and there are 20 legs so Mariel is walking 20/4 = 5 dogs #### 5 A boat carrying 20 sheep, 10 cows and 14 dogs capsized. 3 of the sheep drowned. Twice as many cows drowned as did sheep. All of the dogs made it to shore. How many total animals made it to the shore? The boat had 20 - 3 = <<20-3=17>>17 sheep make it to shore. 3 sheep drowned, so 2 * 3 = <<2*3=6>>6 cows drowned. 10 cows on the boat - 6 drowned = <<10-6=4>>4 cows made it to the shore. 17 sheep + 4 cows + 14 dogs = <<17+4+14=35>>35 animals made it to shore. #### 35 The Rotary Club is holding its annual fundraising Omelet Breakfast, with tickets sold in advance. The tickets come in different price levels, for young children, older children, adults, and seniors. This year they sold 53 small children tickets, 35 older children tickets, 75 adult tickets, and 37 senior tickets. To figure out how many eggs they need to buy, the club estimates that small children can eat a half omelet, older children can eat a whole omelet, adults will eat two omelets, and seniors will eat one and a half omelets. Just to be on the safe side, they get enough eggs to make 25 extra omelets. If they use 2 eggs for each omelet, how many eggs will they need to buy? They'll need to make an estimated 0.5 * 53 = <<0.5*53=26.5>>26.5 omelets for small children. They'll need to make an estimated 1 * 35 = <<1*35=35>>35 omelets for older children. They'll need to make an estimated 2 * 75 = <<2*75=150>>150 omelets for the adults. And they'll need to make an estimated 1.5 * 37 = <<1.5*37=55.5>>55.5 omelets for the seniors. Along with the 25 extra omelets they'll make as a buffer, they will need enough eggs for 26.5 + 35 + 150 + 55.5 + 25 = <<26.5+35+150+55.5+25=292>>292 omelets. So they will need 2 * 292 = <<2*292=584>>584 eggs. #### 584