SSC CPO 2020 PYQ — Question 143

SSC CPO - 23 Nov 2020 - Shift 1 • Quantitative Aptitude • Q143

Three successive discounts 22%, 17%, and 11% are equivalent to a single discount of :

 

Show answer & explanation

Correct answer: C

Explanation

The correct answer is option 3 i.e. approximately 42%

Let the initial price be 100.

Discount 1 = 22% of 100 = 22

Price after discount 1 = 100 - 22 = 78

Discount 2 = 17% of 78 = 13.26

Price after discount 2 = 78 - 13.26 = 64.74

Discount 3 = 11% of 64.74 = 7.1214

Price after discount 3 = 64.74 - 7.1214

Final price after third discount = 57.6186

Total discount = Initial price - Final price = 100 - 57.6186 = 42.3814

Total discount = 42

Discount% = (Total discount/Initial price) × 100

Discount% = (42/100) × 100 = 42%