Question

if A shopkeeper increases the selling price by 25% and then decreased by 25% the present selling price is rupees 225 then what was its original selling price​

Answer 1

Step-by-step explanation:

If the shopkeeper increase the selling price of a 25% then decreased 25% than the original price will be rupees 225

Answer 2

Answer:

My ans could be wrong but method applied is correct

Step-by-step explanation:

let original selling price be x

Atq, First shopkeeper increased SP by 25%

25%of x

$\frac{25}{100} \times x \\ \\ = \frac{x}{4}$

$x + \frac{x}{4} \\ \\ = \frac{5x}{4}$

Then SP decreased by 25%

25% of 5x/4

$\frac{25}{100} \times \frac{5x}{4} \\ \\ \frac{5x}{16}$

$\frac{5x}{4} - \frac{5x}{16} \\ \\ \frac{80x - 20x}{64} \\ \\ \frac{60x}{64} \\ \\ \frac{15x}{16}$

Final SP is 15x/16

Given present selling rupees is 225

so

$\frac{15x}{16 } = 225 \\ \\ x = \frac{225 \times 16}{15} \\ \\ x = 240$

so the original selling price was 240 rupees