SSC CPO 2023 PYQ — Question 122

SSC CPO - 04 Oct 2023 - Shift 2 • Quantitative Aptitude • Q122

What is the difference between a single discount of 35% on ₹700 and two successive discounts of 18% and 12% on the same amount (correct to two places of decimals)?

Show answer & explanation

Correct answer: B

Explanation

The correct answer is Option 2 i.e. ₹50.12.

The price of the article after a single discount of 35% on Rs.700

⇒ 700 × 35/100 = Rs.245

Single discount of two successive discount = x + y +xy/100

⇒ -18 - 12 + 216/100 = -30 + 2.16 = 27.84%

The price of the article after a single discount of 29.7% on Rs.700

⇒ 700 × 27.84/100 = Rs.194.88

Required difference = 245 - 194.88 = Rs.50.12