exam Maths Puzzle Numerical Ability

A car uses 8 gallons of gasoline on a trip of 80 miles. At that rate, how much gasoline will a trip of 160 miles require?

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exam Other Question

Suppose Stephen invested his $8000 in an account that pays 3% interest per year compounded annually.What would be the value of his investment for year 1, year 2, year 3, and year 4 Perform the indicated operations

14x-7/x^2+3x-4 times x^2+6x+8/2x^2+5x-3 divided by x^2+2x/x^2+2x-3