Ratio of earnings of A and B is 8 : 9 respectively. If the earnings of A increase by 50% and the earnings of B decrease by 25%, the new ratio of their earnings becomes 16 : 9 respectively. What are A's earnings?

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BANK PO Exam (RBI) 2008 click here to view all questions

Ratio of earnings of A and B is 8 : 9 respectively. If the earnings of A increase by 50% and the earnings of B decrease by 25%, the new ratio of their earnings becomes 16 : 9 respectively. What are A's earnings?

ARs. 22000

BRs. 28500

CRs. 37000

DCannot be determine

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Correct answer is: Cannot be determine Explanation: Let the earnings of A and B Rs. 8x and Rs. 9x respectively. Then, $\begin{array}{rl}& =\frac{150\mathrm{\%}\text{ of }8x}{75\mathrm{\%}\text{ of }9x}=\frac{16}{9}\\ & \Rightarrow \frac{\frac{3}{2}\times 8x}{\frac{3}{4}\times 9x}=\frac{16}{9}\\ & \Rightarrow \frac{16}{9}=\frac{16}{9}\end{array}$ Hence, A's earnings cannot be determined Nithin ? answered undefined All Comments

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