# 5. A new car is equipped with three fuel saving devices. Device A, by itself, saves 25% on fuel, device B by itself, saves 45% on fuel, and device C by itself saves 30% on fuel. Now, suppose that the three devices are used together, and that they act independently. Will the combination save 25+45+30=100 percent on fuel? Probably not. What is the correct answer?

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5. A new car is equipped with three fuel saving devices. Device A, by itself, saves 25% on fuel, dev...

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