James paints a 20 ft by 15 ft mural. It takes him 20 minutes to paint 1 square foot and he charges $150 per hour. How much does he charge to paint the mural?

The mural is 20*15=

<<20*15=300>>300 square feet So it takes him 300*20=<<300*20=6000>>6000 minutes So he paints it in 6000/60=<<6000/60=100>>100 hours That means he charges 100*150=$<<100*150=15000>>15000 #### 15000 Henri has 8 hours to watch movies and read. He watches one movie that is 3.5 hours and one movie that is 1.5 hours. He then decides to read. If he can read 10 words a minute, how many words does he read before his free time is up? He has 3 hours to read because 8 - 3.5 - 1.5 = <<8-3.5-1.5=3>>3 He has 180 minutes to read because 3 x 60 = <<3*60=180>>180 He can read 1,800 words because 180 x 10 = <<180*10=1800>>1,800 #### 1800 A volcano erupts and spews ash into the sky. The ash cloud spreads out in a diameter eighteen times as far as the distance it shot up into the sky. If the ashes erupted three hundred feet into the sky, what was the radius of the ash cloud in feet? The ash cloud spread out 300 * 18 = <<300*18=5400>>5400 feet in diameter. The radius is half the diameter, so the ash cloud had a radius of 5400 / 2 = <<5400/2=2700>>2700 feet. #### 2700 Milo is making a giant loaf of bread, and the recipe calls for pounds of eggs instead of telling him the number. He needs 6 pounds in total. He looks up online that an egg weighs 1/16 of a pound. If he needs 6 pounds of eggs, how many dozen should he buy? If one egg weighs 1/16 of a pound then 1 pound will be made up of 1/(1/16) = 16 eggs One pound of eggs is 16 eggs so 6 pounds is 6*16 = <<6*16=96>>96 eggs One dozen is 12 eggs so 96 eggs will make 96/12 = <<96/12=8>>8 dozens #### 8 Susan has 3 fish tanks to fill. 1 fish tank contains 7 goldfish and 8 beta fish. The second fish tank contains twice as many fish as the first tank and the third fish tank has a third of the number of fish in the second fish tank. How many fish are in the third fish tank? In the first fish tank, there are 7 goldfish + 8 beta fish = <<7+8=15>>15 fish. The second fish tank therefore has 15 fish in the first tank * 2 = <<15*2=30>>30 fish. So the third tank has 30 fish in the second fish tank / 3 = <<30/3=10>>10 fish. #### 10 A loaf of bread was sliced into 15. Ten friends bought 4 loaves of bread. If they all eat all 4 loaves equally, how many slices of bread did each of them eat? There are 15 x 4 = <<15*4=60>>60 slices of bread in 4 loaves of bread. Hence, each of them ate 60/10 = <<60/10=6>>6 slices of bread. #### 6 Latia wants to buy a Samsung TV worth $1700. She works for a delivery service company for a month earning $10 per hour for a 30-hour workweek. How many more hours does she have to work to buy the TV? In a week, Latia earns 30*10 = $<<30*10=300>>300. In a month, she earns 300*4 = $<<300*4=1200>>1200. If the TV was worth $1700, the total amount she has to work for to buy the TV is 1700-1200 = $<<1700-1200=500>>500. Since she earns $10 per hour, she'll have to work for $500/$10 = <<500/10=50>>50 more hours to buy the TV. #### 50 The P.T.O. decided to provide shirts for the elementary students for track and field day. Each grade was given a different color. 101 Kindergartners wore orange shirts that cost $5.80 each. 113 first graders wore yellow shirts that cost $5 each. 107 second graders wore blue shirts that cost $5.60 each. 108 third graders wore green shirts that cost $5.25 each. How much did the P.T.O. spend on shirts for field day? The cost for 101 Kindergarten shirts x $5.80 = $<<101*5.80=585.80>>585.80. The cost for 113 first grade shirts x $5 = $<<113*5=565>>565. The cost for 107 second grade shirts x $5.60 = $<<107*5.60=599.20>>599.20. The cost for 108 third grade shirts x $5.25 = $<<108*5.25=567>>567. The total cost of the shirts was $585.80 + $565 + $599.20 + $567 = $<<585.8+565+599.2+567=2317>>2,317 #### 2,317 A bottle can hold 2 cups of water. How many cups of water are needed to fill up 10 whole bottles and 5 half-capacity bottles? For 10 whole bottles, you will need 10*2=<<10*2=20>>20 cups of water. With 5 half-capacity bottles, it requires 5*1=<<5*1=5>>5 cups of water. In total, you need to have 25+5=<<25+5=30>>30 cups of water to fill them all. #### 30 Hazel and Razel are twins who share everything they receive. If Hazel received 6 shirts, while Razel received twice the number of shirts as Hazel. How many shirts do they have in total? Razel received 6 x 2 = <<6*2=12>>12 shirts. Therefore, they have 12 + 6 = <<12+6=18>>18 shirts altogether. #### 18