Question
A businessman buys some lemons at the rate of 2 for 1
rupee and the same number of lemons at the rate of 3 for 1 rupee. At what price should he sell all the lemons per dozen so that he gets a profit of 20%?Solution
 1rs2 lemon LCM of 2,3 = 6 1rs3 lemon Let him buy 6 lemons from each- Then net CP =6×1/2=3 = 6×1/3=2 Net CP = 3+2 = 5 Profit %= 20% SP = 5×120/100 =600/100=6rs/dozen
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