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Subbu purchased a tape recorder at 9/10 of its selling price and sold it at 8% more than its selling price. His gain is

Answer

Let S.P = x then C.P = $\inline \frac{9x}{10}$

Selling price received by subbu = (108% of x)

= $\inline \frac{108}{100}x=\frac{27}{25}x$

Gain= $\inline (\frac{27}{25}x-\frac{9}{10}x)=\frac{9}{50}x$

Hence gain% = $\inline (\frac{9x}{50}\times \frac{10}{9x}\times 100)$ = 20%

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Subject: Percentage