exam Maths Puzzle Numerical Ability

Find the square root. Assume that all of the variables represent positive real numbers of the radical

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exam Other Question

List these fractions in increasing order by estimating their values. Then use your calculator to find the decimal value of each fraction.
7/8 13/20 13/5 52/25 Solution A is 80% Alcohol and Solution B is 50% Alcohol. How many Liters of each solutions should be mixed in order to make 100 Liters of a solution that is 68% alcohol?