The marked price of an article is ₹300. It is sold for ₹177.84 after giving three successive discounts of 20%, x % and 5%, What is the value of x ?

22

Marked price = Rs.300

Three discounts = 20%, x% and 5%

Selling price = Rs.177.84

Discount          M.P          S.P

 x%               a             b

5                  20           19

overall           300         177.84

So, 

a : b = 50 : 39

Discount % = \(\frac{11}{50}\) × 100 = 22%