A man sells his typewriter at 5% loss. If he sells it for Rs. 80 more, he will gain 5%. The cost price of the typewriter is

Explanation

At 5% loss. SP =Rs.95x100$=Rs.\frac{95x}{100}$

Now,95x100+80=105x100$Now,\frac{95x}{100}+80=\frac{105x}{100}$

=>105x100−95x100=80$=>\frac{105x}{100}-\frac{95x}{100}=80$

=>105x−95x100=80$=>\frac{105x-95x}{100}=80$

=>x=800010=Rs.800

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