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Maths Puzzle
Numerical Ability
how many liters of water must be added to 8 liters of a 40 percent acid solution to obtain a 10 percent acid solution?
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book Other Question
how many years will it take $6000 invested at 8% interest to earn $1680?
The degree three polynomial f(x) with real coefficients and leading coefficient 1, has 4 and 3 + i among its roots. Express f(x) as a product of linear and quadratic polynomials wi