Question

A man sold an article for Rs. 13338 after giving two successive discounts of x% and 2x%. If the marked price of the article is Rs. 15600, then find the value of 'x'.

Answer 1

Let the first discount offered be x/100 and the 2nd discount is also x%

Total discount 259.20 which is 36% of Marked Price of 720/-

So as per formula x+x-(x2/100) = 36

200x-x2-3600=0 or

X2-200x+ 3600=0

x^2 -180x - 20x +3600 =0

=x(x-180) - 20 (x-180) =0

Therefore x=20 or x= 180 ( rejected)

Hence x=20%