Henry went to the beach and picked up 17 perfect shells and 52 broken shells. Out of those 52 broken shells, half of them were spiral. Out of the 17 perfect shells, 12 of them were not spiral. How many more broken spiral shells were there than perfect spiral shells?

52 broken shells / 2 =

<<52/2=26>>26 broken shells were spiral. 17 perfect shells - 12 not spiral perfect shells = 5 perfect shells were spiral. There were 26 - 5 = <<26-5=21>>21 more broken spiral shells than perfect spiral shells. #### 21 Hani said she would do 3 more situps per minute than Diana would. Diana then did 40 situps at a rate of 4 situps per minute. Calculate the total number of situps they did together. Since Diana did 40 situps at a rate of 4 situps/minute, she did situps for 40 / 4 = <<40/4=10>>10 minutes Hani had to do 3 + 4 = <<3+4=7>>7 situps per minute if Diana did 4 situps per minute. So over the 10 minutes Hani did 7*10 = <<7*10=70>>70 situps. Together, the total number of situps they did is 70+40 = <<70+40=110>>110 #### 110 Care and Rick have a repair shop. Each repair is priced differently: phone repair costs $11, laptop repair costs $15 and computer repair costs $18. If they perform 5 phone repairs, 2 laptop repairs, and 2 computer repairs for this week, how much did they earn for the week? They earned $11 x 5 = $<<11*5=55>>55 for the phone repairs. They earned $15 x 2 = $<<15*2=30>>30 for the laptop repairs. They also earned $18 x 2 = $<<18*2=36>>36 for computer repairs. Therefore, Care and Rick earned $55 + $30 + $36 = $<<55+30+36=121>>121 for the week. #### 121 Jill likes to do small jobs online. She makes $10 a day for her first month working online, and double that per day in her second month. Her third month she makes the same amount per day as the previous month, but only works every other day. How much did she make over three months, assuming each month is 30 days long? Since there are 30 days in a month and Jill makes $10 a day her first month, she makes 30*10= <<30*10=300>>300 dollars her first month. She makes twice the amount of the previous month's $300 in her second month, so she makes 2*300=<<300*2=600>>600 dollars her second month. She makes the same amount per day the third month, but only works half the number of days, so she makes 600/2= <<600/2=300>>300 dollars a month her third month. In total, she makes 300+300+600= <<300+300+600=1200>>1,200 dollars #### 1,200 Carla is dividing up insurance claims among 3 agents. Missy can handle 15 more claims than John, who can handle 30% more claims than Jan. If Jan can handle 20 claims, how many claims can Missy handle? First find the additional number of claims John can handle: 30% * 20 claims = <<30*.01*20=6>>6 claims Then add that amount to Jan's number of claims to find John's number of claims: 20 claims + 6 claims = <<20+6=26>>26 claims Then add the 15 additional claims Missy can handle to find her number: 26 claims + 15 claims = <<15+26=41>>41 claims #### 41 The chances of making the junior high basketball team start at 10% if you're 66 inches and increase 10% for every additional inch of height. Devin starts out as 65 inches tall, then grows 3 inches. What are his chances of making the basketball team? First find Devin's new height by adding his growth to the original height: 65 inches + 3 inches = <<65+3=68>>68 inches Then subtract 66 inches from Devin's height to find how many extra inches of height he has: 68 inches - 66 inches = <<68-66=2>>2 inches Then multiply the number of extra inches by the percentage increase per inch to find the total percentage increase in his chances: 2 inches * 10%/inch = 20% Then add the percentage increase to the base percentage to find Devin's overall chance of making the basketball team: 10% + 20% = 30% #### 30 Jimmy is a pizza delivery man. Each pizza costs 12 dollars and the delivery charge is 2 extra dollars if the area is farther than 1 km from the pizzeria. Jimmy delivers 3 pizzas in the park, which is located 100 meters away from the pizzeria. Also, he delivers 2 pizzas in a building 2 km away from the pizzeria. How much money did Jimmy get paid for the pizzas? Adding the pizzas delivered in the park and in the building, Jimmy delivered a total of 2 + 3 = <<2+3=5>>5 pizzas The value of the 5 pizzas without delivery charge is 5 pizzas * $12/pizza = $<<5*12=60>>60. The cost of the delivery charge for two pizzas is 2 pizzas * $2/pizza = $<<2*2=4>>4 In total, Jimmy got paid $60 + $4 = $<<60+4=64>>64 for the pizzas. #### 64 Regina has a farm with animals. She has 20 cows and four times more pigs. Someone told her, that she could sell all the animals and earn $400 for each pig and $800 for each cow. How much money would she earn if she would sell all the animals from the farm? Regina has 4 pigs/cow * 20 cows = <<4*20=80>>80 pigs. She could sell the pigs for 80 pigs * $400/pig = $<<80*400=32000>>32000. For the cows Regina would get 20 cows * $800/cow = $<<20*800=16000>>16000. In total Regina would earn $16000 + $32000 = $<<16000+32000=48000>>48000. #### 48000 A tank can hold 100 liters of water. At the beginning of the rainy season, the tank is 2/5 filled with water. On the first day of the rainy season, the tank collected 15 liters of water. On the second day, 5 liters more water was collected than on the first day. On the third day, the tank was already filled. How many liters of water were collected on the third day? At the beginning of the rainy season, the tank is filled with 100 x 2/5 = <<100*2/5=40>>40 liters of water. On the first day of the rainy season, the tank had 40 + 15 = <<40+15=55>>55 liters of water. On the second day, 15 + 5 = <<15+5=20>>20 liters of water were collected. So, the tank is filled with 55 + 20 = <<55+20=75>>75 liters of water on the second day. Therefore, 100 - 75 = <<100-75=25>>25 liters of water were collected on the third day. #### 25 A guy goes to the tool shop and buys 5 sets of drill bits. Each set cost 6 dollars. He then pays 10% tax on the order. What was the total amount he paid? The drill bits cost 5*6=$<<5*6=30>>30 The tax came out to 30*.1=$<<30*.1=3>>3 So the total cost was 30+3=$<<30+3=33>>33 #### 33