SSC CGL 2019 PYQ — Question 70

SSC CGL - 4th June 2019 - Shift 3 • Quantitative Aptitude • Q70

A man purchases 100 copies of a book from the publisher and gets a discount of 25%. He buys 50 copies from a retailer at a discount of 10%. He got an overall discount of:

Show answer & explanation

Correct answer: C

Explanation

 The correct answer is option 3 i.e. 20%

Understanding

Application

Let the price of one copy of book is Rs. 100

Price of 100 copies = Rs. 10000

After 25% discount:

Discounted price of 100 copies = 10000 × 0.75 = 7500

Price of 50 copies = 100 × 50 = 5000

After 10% discount:

Discounted price of 50 copies = 5000 × 0.9 = 4500

Total price of 150 copies = 15000

The man paid a total of = 7500 + 4500 = 12000.

Overall discount = [(15000 – 12000)/15000] × 100 = 20%