What single discount is equal to two successive discounts of 20% and 10%?

A. 30%

B. 28%

C. 26%

D. 27%

Doubtly AI Asked 27 Oct 2026 AI-generated · not yet verified ssc cgl Save WhatsApp Report

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Answer: B. 28%

Answer: (B) 28%

Shortcut: \(a + b - \frac{ab}{100} = 20 + 10 - 2 = 28\%\).

Plain: 100 → 80 → 72, a total discount of 28%.

Doubtly AI · 27 Oct 2026 AI-generated · not yet verified Report

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