A merchant bought some goods worth Rs. 6000 and sold half of them at 12% profit. At what profit per cent should he sell the remaining goods to make and overall profit of 18%?
50% of the goods are sold at 12%.
=> 0.5(x) + 0.5(12) = 0.18
=> 0.5x = 0.12
=> x = 0.24
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