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A number is divided by 3/7 and then multiplied by 5/8. The net effect (approx) is-

A. the number decreases by 22%
B. the number decreases by 33%
C. the number increases by 46%
D. the number increases by 33%
E. none of these
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Explanation: Let the number be \(x\). The net effect is \(x \times \frac{7}{3} \times \frac{5}{8} = x \times \frac{35}{24} \approx x \times 1.4583\). The increase is \(1.4583x - x = 0.4583x\), which is approximately \(46\%\) increase.