book Maths Puzzle Numerical Ability

7X(1-X)= 5(X-2)

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book Other Question

prove that each number is rational by finding a pair of ntegers whose ratio or quotient is equal to the number
1. 3.56
2. -0.000230
3. -1.6 with a line over the 6
4. 5 3/8 4)For a fixed rate, a fixed principal amount, and a fixed compounding cycle, the return is an exponential function of time. Using the formula,
A= P(1 + r/n)^nt , let r = 8%, P =