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What does M85/E15 represent?

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in Automotive Engine Design by (137k points)
What does M85/E15 represent?

(a) 85% methylene and 15%ethlyene

(b) 85% methanol and 15% ethanol

(c) 85% methyl and 15%ethyl

(d) 85% methyl and 15%ethlyene

I got this question in a national level competition.

My question comes from Properties of Conventional Fuels topic in section Fuels, Intake System & Leakage Preventers of Automotive Engine Design

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The correct answer is (b) 85% methanol and 15% ethanol

Explanation: M85/E15 represents that the mixture of gasoline contains 85% methanol and 15% ethanol. Methanol and Ethanol are two main constituents is gasoline.

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