A car uses 20 gallons of gas to travel 400 miles. Mr. Montero's car has 8 gallons in it. How many more gallons of gas does he need to travel 600 miles, back and forth?

Mr. Montero is traveling a total distance of 600 miles + 600 miles =

<<600+600=1200>>1200 miles. There are 1200 miles / 400 miles = <<1200/400=3>>3 sets of 400 miles in 1200 miles. So Mr. Montero needs 20 gallons/set x 3 sets = <<20*3=60>>60 gallons in all. Since his car has 8 gallons already, then he needs to add 60 gallons - 8 gallons = <<60-8=52>>52 gallons more. #### 52 Mira jogs every morning. She jogs 5 miles per hour. If she jogs for 2 hours every morning, how many miles can she jog for five days? Mira jogs 5 x 2 = <<5*2=10>>10 miles per day. Therefore she can jog 10 x 5 = <<10*5=50>>50 miles for 5 days. #### 50 Bekah had to read 408 pages for history class. She read 113 pages over the weekend and has 5 days left to finish her reading. How many pages will she need to read each day for 5 days to complete her assignment? Pages left to read: 408 - 113 = <<408-113=295>>295 pages 295/5 = <<295/5=59>>59 pages Bekah needs to read 59 pages each day. #### 59 Andy and Bob went to the canteen to buy snacks. They spent the same amount. Andy bought a can of soda at $1 and two hamburgers at $2 each. Bob ordered two sandwiches for $3 and a can of fruit drink. How much did Bob's fruit drink cost? Two hamburger cost 2 x $2 = $<<2*2=4>>4. So, Andy spent $1 + $4 = $<<1+4=5>>5. Therefore, Bob's fruit drink cost $5 - $3 = $<<5-3=2>>2. #### 2 A library cabinet houses five ancient scrolls. The first scroll is 4080 years old. If each scroll is older than the last by half as many years as the last scroll’s age, how old is the fifth scroll? The second scroll is 4080 + 4080 / 2 = 4000 + 2040 = <<4080+4080/2=6120>>6120 years old. The third scroll is 6120 + 6120 / 2 = 6120 + 3060 = <<6120+6120/2=9180>>9180 years old. The fourth scroll is 9180 + 9180 / 2 = 9180 + 4590 = <<9180+9180/2=13770>>13770 years old. The fifth scroll is 13770 + 13770 / 2 = 13770 + 6885 = <<13770+13770/2=20655>>20655 years old. #### 20655 A washing machine uses 20 gallons of water for a heavy wash, 10 gallons of water for a regular wash, and 2 gallons of water for a light wash per load of laundry. If bleach is used, there is an extra light wash cycle added to rinse the laundry thoroughly. There are two heavy washes, three regular washes, and one light wash to do. Two of the loads need to be bleached. How many gallons of water will be needed? The two heavy washes will use 20 * 2 = <<20*2=40>>40 gallons of water. The three regular washes will use 10 * 3 = <<10*3=30>>30 gallons of water. The light wash will use 2 * 1 = <<2*1=2>>2 gallons of water. The two bleached loads will use an extra 2 * 2 = <<2*2=4>>4 gallons of water. In all, 40 + 30 + 2 + 4 = <<40+30+2+4=76>>76 gallons of water will be needed. #### 76 There are 32 tables in a hall. Half the tables have 2 chairs each, 5 have 3 chairs each and the rest have 4 chairs each. How many chairs in total are in the hall? Half of 32 tables is 32*(1/2) = <<32*(1/2)=16>>16 tables 16 tables have 2 chairs each for a total of 16*2 = <<16*2=32>>32 chairs 5 tables have 3 chairs each for a total of 5*3 = <<5*3=15>>15 chairs There are 32-(16+5) = <<32-(16+5)=11>>11 tables left 11 tables have 4 chairs each for a total of 11*4 = <<11*4=44>>44 chairs The total number of chairs is 32+15+44 = <<32+15+44=91>>91 chairs #### 91 Ian won $100 in the lottery. He decided to use the money to pay off debts. He paid $20 to Colin. He then paid twice as much to Helen, as he had paid to Colin. Then finally, he paid half as much to Benedict, as he had paid to Helen. How much money, in dollars, does he have left after paying off debts? Starting with $100, he paid $20 to Colin, leaving him with $100-$20=$<<100-20=80>>80. Twice as much as $20 is 2*$20=$<<2*20=40>>40. Thus, he paid $40 to Helen, leaving him with $80-$40=$<<80-40=40>>40. Half as much to Benedict as he had paid to Helen is $40/2=$<<40/2=20>>20. Thus, he paid $20 to Benedict, leaving him with $40-$20=$20 after paying off all debts. #### 20 A company has 200 employees. 60% of the employees drive to work. Of the employees who don't drive to work, half take public transportation. How many more employees drive to work than take public transportation? Drive to work:200(.60)=<<200*.60=120>>120 Don't Drive to work:200-120=<<200-120=80>>80 Public Transportation:80(.50)=40 employees 80-40=<<80-40=40>>40 employees #### 40 Jan buys 1000 feet of cable. She splits it up into 25-foot sections. She gives 1/4 of that to a friend. She then puts half of the rest in storage. How much does she keep on hand? She gets 1000/25=<<1000/25=40>>40 sections She gives away 40/4=<<40/4=10>>10 sections So she keeps 40-10=<<40-10=30>>30 sections She keeps 30/2=<<30/2=15>>15 sections on hand #### 15