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A trader sold half of his articles at 60% profit, half of the remaining at 20% loss and the rest was sold at the cost price. In total transaction his gain % or loss % will be:

Solution

Correct Option: 4

Let total = 4 articles. Half (2) sold at 60% profit; half of remaining (1) at 20% loss; last 1 at cost. Using weighted average: (2×60+1×(20)+1×0)/4=(12020)/4=100/4=25%(2 \times 60 + 1 \times (-20) + 1 \times 0)/4 = (120 - 20)/4 = 100/4 = 25\% gain.

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