Question : A shopkeeper earns a profit of 15% after selling a book at a 20% discount on the printed price. The ratio of the cost price to the printed price of the book is:
Option 1: 20 : 23
Option 2: 23 : 20
Option 3: 16 : 23
Option 4: 23 : 16
Latest: SSC CGL preparation tips to crack the exam
Don't Miss: SSC CGL complete guide
Correct Answer: 16 : 23
Solution :
Selling price = $\frac{100-\text{discount%}}{100}×$ marked price
Selling price = $\frac{100+ \text{profit%}}{100}×$ cost price
From both formulas,
$\frac{100-\text{discount%}}{100}×$ marked price = $\frac{100+ \text{profit%}}{100}×$ cost price
⇒ $\frac{100-20}{100}×$ marked price = $\frac{100+15}{100}×$ cost price
⇒ Cost price : marked price = 80 : 115 = 16 : 23
Hence, the correct answer is 16 : 23.
Related Questions
Know More about
Staff Selection Commission Combined Grad ...
Answer Key | Eligibility | Application | Selection Process | Preparation Tips | Result | Admit Card
Get Updates Brochure
Your Staff Selection Commission Combined Graduate Level Exam brochure has been successfully mailed to your registered email id “”.
