SSC CGL 2019 PYQ — Question 54

SSC CGL - 4th June 2019 - Shift 1 • Quantitative Aptitude • Q54

After giving two successive discounts, each of x%, on the marked price of an article, the total discount is Rs. 259.20. If the marked price of the article is Rs. 720, then the value of x is:

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e. 20

Concept

Understanding

Application

 

 

When 2 successive discounts of x% are applied, cumulative discount = [x + x – x2/100]

 

MP = 720

Total discount = 259.2

2 successive discounts of x% are applied. 

 

% Discount = 259.2/720 = 36%

 

Hence, Solving this with the help of options:

[x + x – x2/100] =

[20 + 20 – 202/100]

= 40 – 4 = 36

So, x = 20