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A car gets 30 miles to the gallon. If it is modified to use a solar
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13 Jul 2015, 23:59
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Re: A car gets 30 miles to the gallon. If it is modified to use a solar
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14 Jul 2015, 00:39
Bunuel wrote: A car gets 30 miles to the gallon. If it is modified to use a solar panel, it will use only 75 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
A. 112.5 B. 150 C. 337.5 D. 450 E. 500
Kudos for a correct solution. Solution  Mileage before modification = 30 * 15 = 450 miles After modification, 1 gallon of fuel gets 30/(.75) = 40 miles per gallon. Mileage before modification = 40 * 15 = 600 miles Extra Miles Car will travel after modification = 600  450 = 150 miles. ANS B
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A car gets 30 miles to the gallon. If it is modified to use a solar
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17 Jul 2015, 03:00
Bunuel wrote: A car gets 30 miles to the gallon. If it is modified to use a solar panel, it will use only 75 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
A. 112.5 B. 150 C. 337.5 D. 450 E. 500
Kudos for a correct solution. Before modified: 1 gallon  30 miles 15 gallons  \(15*30=450\) miles After modified: \(0.75*1=\frac{{3}}{{4}}\) gallon  30 miles > 15 gallons  \(\frac{{15*30*4}}{3}=600\) miles > after modified, the car is able to travel \(600450=150\) more miles. Answer: B



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Re: A car gets 30 miles to the gallon. If it is modified to use a solar
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17 Jul 2015, 04:58
Original mileage = 30 miles/gallon. Mileage when a solar panel is used = 30/0.75 = 40 miles/gallon. Capacity of fuel tank = 15 gallons. Difference: (40*15)  (30*15) = 150. Ans (B).
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Re: A car gets 30 miles to the gallon. If it is modified to use a solar
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17 Jul 2015, 07:52
Bunuel wrote: A car gets 30 miles to the gallon. If it is modified to use a solar panel, it will use only 75 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
A. 112.5 B. 150 C. 337.5 D. 450 E. 500
Kudos for a correct solution. 1 gallon will give 30 miles Therefore, 15 gallons will give 450 miles After modification, 0.75 gallons will give 30 miles Therefore after modification, 15 gallons will give=(15*30)/0.75=600 miles Answer=600450=150 B



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Re: A car gets 30 miles to the gallon. If it is modified to use a solar
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17 Jul 2015, 08:35
Bunuel wrote: A car gets 30 miles to the gallon. If it is modified to use a solar panel, it will use only 75 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
A. 112.5 B. 150 C. 337.5 D. 450 E. 500
Kudos for a correct solution. Currently, the car gets 450 (30*15) miles per tank. .75x = 30 x = 40 New tank gets 40*15 = 600 B
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Re: A car gets 30 miles to the gallon. If it is modified to use a solar
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18 Jul 2015, 05:05
Bunuel wrote: A car gets 30 miles to the gallon. If it is modified to use a solar panel, it will use only 75 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
A. 112.5 B. 150 C. 337.5 D. 450 E. 500
Kudos for a correct solution. Total miles to the car with full tank = 30 * 15 = 450 miles After adding the solar panel, (3/4) * x = 30, => x = 40 miles per gallon. Total miles after modification => 40 * 15 = 600 miles The question is the difference => 600  450 => 150 miles. Option B



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Re: A car gets 30 miles to the gallon. If it is modified to use a solar
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19 Jul 2015, 12:23
Bunuel wrote: A car gets 30 miles to the gallon. If it is modified to use a solar panel, it will use only 75 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
A. 112.5 B. 150 C. 337.5 D. 450 E. 500
Kudos for a correct solution. 800score Official Solution:After the modification, the vehicle will use less fuel, and will be able to travel 30 miles using just 75% of 1 gallon of fuel, or 0.75 gallons. Therefore, it will travel 30/(0.75), or 40 miles, per gallon of fuel. Thus, it can travel an additional 10 miles per gallon, and an additional 150 miles per full tank. The correct answer is choice (B).
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Re: A car gets 30 miles to the gallon. If it is modified to use a solar
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28 May 2017, 04:54
Bunuel wrote: A car gets 30 miles to the gallon. If it is modified to use a solar panel, it will use only 75 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
A. 112.5 B. 150 C. 337.5 D. 450 E. 500
Kudos for a correct solution. Normal miles/gallon = 30 when it uses 75% fuel per mile, it will travel \(30 * \frac{100}{75} = 40 miles/gallon\) Difference per gallon = 10 miles/gallon Difference on 15 gallons = 15*10 = 150 miles (B)
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Re: A car gets 30 miles to the gallon. If it is modified to use a solar
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20 Jan 2019, 16:20
Bunuel wrote: A car gets 30 miles to the gallon. If it is modified to use a solar panel, it will use only 75 percent as much fuel as it does now. If the fuel tank holds 15 gallons, how many more miles will the car be able to travel, per full tank of fuel, after it has been modified?
A. 112.5 B. 150 C. 337.5 D. 450 E. 500
Kudos for a correct solution. My thought process if it helps anyone: mileage = 30 miles/gallon gas capacity = 15 gallons total distance travelable = 450miles If a solar panel is installed the car will only use 3/4 the amount of fuel. This means the car will be able to travel the same distance at 15*3/4 gallons of fuel. We can setup the equation as such: \(450 = (15*\frac{3}{4}) * x\) x = 40 miles/gallon 40 * 15 = 600 miles travelable with the solar panel 600  450 = 150 miles




Re: A car gets 30 miles to the gallon. If it is modified to use a solar &nbs
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