a man buys a plot of land at 360000 he sells one third at a loss of 20% again he sells two third of the plot at a profit of 25% at what price should he sell the remaining plot in order to get a profit of 10% on the whole
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Solve it by parts ,,much easier way
we'll consider loss as negative and profit as positive
1/3(-20%) + 4/9(20%) + 2/9(x%) = 10%
x% = 35%
he must sell remaining at 35% profit to earn 10% profit over all.
note::There's assumption done in question that 2/3of remaining is sold at 25% profit. Otherwise question can't be solved
we'll consider loss as negative and profit as positive
1/3(-20%) + 4/9(20%) + 2/9(x%) = 10%
x% = 35%
he must sell remaining at 35% profit to earn 10% profit over all.
note::There's assumption done in question that 2/3of remaining is sold at 25% profit. Otherwise question can't be solved
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