Math, asked by vigneshmuthu, 9 months ago

The marked price of an article is ₹1500. If two successive discounts, each of x% . on the marked price is equal to a single discount of ₹587.40, then what will be the selling price ofthe articleif a single discount of x% is given on the marked price?​

Answers

Answered by amitnrw
7

Given : The marked price of an article is ₹1500. If two successive discounts, each of x% . on the marked price is equal to a single discount of ₹587.40,

To find : what will be the selling price of the article , if a single discount of x% is given on the marked price

Solution:

Marked Price = 1500  Rs

1st Discount  x % =  (x/100)1500  = 15x  Rs

Price after 1st Discount = 1500 - 15x  = 15(100 - x)  Rs

2nd Discount x%  = (x/100)15(100 - x)  

15x  + 15x(100 - x)/100  =  587.40

=> 1500x  + 1500x - 15x²  = 58740

=> 200x - x²  = 3916

=> x² - 200x + 3916 = 0

=> x² - 22x - 178x  + 3916 =  0

=> x(x - 22) - 178(x - 22) = 0

=> (x - 22)(x - 178 ) = 0

=> x = 22    x = 178  ( 178 not possible as dscount can not be more than 100 %)

x = 22

Discount = 15x  = 15 * 22  = 330 Rs

Selling price  =  1500 - 330    = 1170 Rs

selling price of the article = Rs 1170  if  a single discount of x% is given on the marked price

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