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 so as to make an overall profit of 18%?
Total profit to be made = 18%
Profit already made = 6% (12% on half of total value means 6% on total value)
Profit remaining = 12%
Since 12% profit is to be earned on 100% of the quantity, 24% of profit is to be made on half of the qunatity.
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