In a city, the number of people living per cubic yard is 80. How many more people are in a city with 9000 cubic yards than a city with 6400 cubic yards?

How many more cubic yards are in the city with 9000 cubic yards than the city with 6400 cubic yards? ** The difference in cubic yards between the two cities is 9000-6400 =

<<9000-6400=2600>>2600 cubic yards. How many more people are in a city with 9000 cubic yards than a city with 6400 cubic yards? ** Since the number of people living in a city per cubic yard is 80, there are 80*2600 = 208000 more people living in a city with 9000 cubic yards than a city with 6400 cubic yards. #### 208000 There are 480 grains of rice in one cup. If half a cup is 8 tablespoons and one tablespoon is 3 teaspoons, how many grains of rice are in a teaspoon? How many tablespoons are in a full cup? ** First find the number of tablespoons in a full cup: 8 tablespoons/half-cup * 2 half-cups/cup = <<8*2=16>>16 tablespoons How many teaspoons are in a cup? ** Then find the total number of teaspoons in a cup: 16 tablespoons/cup * 3 teaspoons/tablespoon = <<16*3=48>>48 teaspoons How many grains of rice are in a teaspoon? ** Then find the number of grains of rice per teaspoon: 480 grains / 48 teaspoons = <<480/48=10>>10 grains/teaspoon #### 10 Mandy started reading books with only 8 pages when she was 6 years old. By the time she was twice that age, she was reading books 5 times longer, and 8 years later, she was reading books 3 times longer than that. Presently, she reads books that are 4 times the previous length. How many pages do the books she reads now have? How old was Mandy when she was 12? ** Twice the age of 6 is 6 x 2 = <<6*2=12>>12 years old. How many pages were the books Mandy was reading at 12? ** At 12 years old, Mandy was reading books 5 x 8 = <<5*8=40>>40 pages long. How old was Mandy when she was 20? ** 8 years later, Mandy was 12 + 8 = <<12+8=20>>20 years old. How many pages were the books Mandy was reading at 20? ** At 20 years old, Mandy was reading books 3 x 40 = <<3*40=120>>120 pages long. How many pages do the books she reads now have? ** Presently, she reads books that are 120 x 4 = <<120*4=480>>480 pages long. #### 480 A driver travels 30 miles per hour for 3 hours and 25 miles per hour for 4 hours to deliver goods to a town every day from Monday to Saturday. How many miles does the driver travel in a week? How many miles does the driver travel in a day? ** The driver travels (3 hours * 30 mph) + (25 mph * 4 hours) = <<(3*30)+(25*4)=190>>190 miles per day How many miles does the driver travel in a week? ** From Monday to Saturday he travels in total 190 miles/day * 6 days = <<190*6=1140>>1,140 miles in a week #### 1140 Kobe and Pau went to a restaurant. Kobe ordered five pieces of fried chicken, and Pau ordered twice as much fried chicken as Kobe did. If they order another set of fried chicken, how many pieces of fried chicken will Pau have eaten in all? How many pieces of fried chicken did Pau order? ** Pau ordered 5 x 2 = <<5*2=10>>10 fried chickens in total. How many pieces of fried chicken did Pau eat? ** Therefore, Pau ate 10 x 2 = <<10*2=20>>20 pieces of fried chicken. #### 20 Texas Integrated School has 15 classes and has 20 students per class. They added five more classes, how many students will they have now? How many students are there now? ** The school has 15 x 20 = <<15*20=300>>300 students right now. How many students will they have after adding 5 more classes? ** They have an additional 5 x 20 = <<5*20=100>>100 students after adding 5 more classes. How many students will they have now? ** Therefore, Texas Integrated School will have a total of 300+100= <<300+100=400>>400 students. #### 400 John gets his pool cleaned every 3 days. It cost $150 each time and he gives the guy a 10% tip each time he comes to clean. Then twice a month he needs to use $200 of chemicals. How much does his pool cost a month? How many times does John get his pool cleaned in a month? ** He gets his pool cleaned 30/3=<<30/3=10>>10 times a month How much does John tip each time he gets his pool cleaned? ** Each time he gets it cleaned he tips 150*.1=$<<150*.1=15>>15 How much does John pay each time he gets his pool cleaned? ** So he pays 150+15=$<<150+15=165>>165 How much does John pay in total for cleaning? ** So he pays 165*10=$<<165*10=1650>>1650 a month on cleaning How much do the chemicals cost? ** The chemicals cost 200*2=$<<200*2=400>>400 How much does John pay in total? ** So in total, he pays 1650+400=$<<1650+400=2050>>2050 #### 2050 Pearl wants to order 5 monogrammed Christmas stockings for each of her 5 grandchildren and her own 4 children. The stockings are $20.00 each and currently 10% off. The monogramming will costs $5.00 per stocking. How much will the stockings costs? How many stockings does Pearl need? ** She has 5 grandchildren 4 children so she needs 5+4 = <<5+4=9>>9 stockings How much are the stockings? ** The stockings are $20.00 each and currently 10% off so that's 20*.10 = $<<20*.10=2.00>>2.00 off How much are the stockings? ** The stockings are $20.00 with a $2.00 discount so they are each 20-2 = $<<20-2=18.00>>18.00 How much will the stockings cost? ** The stockings are now $18.00 and she needs 9 so that's $<<18*9=162>>162.00 How much will the monogramming cost? ** She also wants to monogram each stocking at $5.00 per stocking so that's 9*5 = $<<9*5=45.00>>45.00 How much will the stockings cost? ** The stockings are $162.00 and the monogramming will cost $45.00 so the stockings will cost 162+45 = $<<162+45=207.00>>207.00 #### 1035 Greta, George and Gloria entered their turtles in the Key West Turtle Race. Greta’s turtle finished the race in 6 minutes. George’s turtle finished 2 minutes quicker than Greta’s. Gloria’s turtle took twice as long as George’s turtle. How long did it take Gloria’s turtle to finish the race? How many minutes did George’s turtle take to finish the race? ** George’s turtle finished 2 minutes quicker than Greta’s so 6-2 = <<6-2=4>>4 minutes to finish How many minutes did Gloria’s turtle take to finish the race? ** Gloria’s turtle took twice as long as George’s turtle, who finished in 4 minutes so 2*4 = <<8=8>>8 minutes #### 8 A beadshop earns a third of its profit on Monday, a quarter of its profit on Tuesday and the rest of its profit on Wednesday. The shop makes a total profit of $1,200. How much profit, in dollars, was made on Wednesday? How much money was made on Monday? ** On Monday, 1200/3=<<1200/3=400>>400 dollars were made. How much money was made on Tuesday? ** On Tuesday, 1200/4=<<1200/4=300>>300 dollars were made. How much money was made on Wednesday? ** On Wednesday, 1200-400-300=<<1200-400-300=500>>500 dollars were made. #### 500