A woman drives an SUV that gets 14 mi/gal (mpg). Her husband drives a hybrid that gets 65 mpg. Every week, they travel the same number of miles. They want to improve their combined mpg. They have two options on how they can improve it. Option 1: They can tune the SUV and increase it mileage by 2 mpg and keep the hybrid as it is. Option 2: They can buy a new hybrid that gets 85 mpg and keep the SUV as it is. Compute the combines mpg for each option. Option 1 Answer? : Option 2 Answer? :(round to one decimal place as needed.
Question
Answer:
You can work this problem the same way the similar problem was worked atOption 1: 2/(1/16 +1/65) = 25.7 mpg
Option 2: 2/(1/14 +1/85) = 24.0 mpg
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As before, improving the least-efficient vehicle gives best resuls.
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10 months ago
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