exam Maths Puzzle Numerical Ability

An 800 g solution of acid and water contains 128 g of acid. What percent of the solution is acid?

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exam Other Question

What is the slope, x-intercept, and y- intercept of 2x-3y+18=0? Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, -3) and is parallel to the line with equation