exam Maths Puzzle Numerical Ability

suppose you choose a letter at random from the word ARITHMETIC.what are the odds in favor of selecting a vowel?what are the odd against selecting a vowel?

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exam Other Question

Cofee merchant has coffee beans that sell for $9 per pound and $12 per pound. The two types are to be mixed to create 100lb of a mixture that will sell for $11.25 per pound. How much of each type of bean should be used in the mixture? I have to factor if possible and completely factor..always factor out the greatest common factor first if one exists...

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by+7b-6y-42