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    Question

    A man purchases some pens at a rate of 4 for ₹14 and

    an equal number at a rate of 5 for ₹18. He sells all the pens at a rate of 6 for ₹20. What is his overall percentage gain or loss?
    A 6% profit Correct Answer Incorrect Answer
    B 6% loss Correct Answer Incorrect Answer
    C 8% loss Correct Answer Incorrect Answer
    D 10% profit Correct Answer Incorrect Answer

    Solution

    Let he buys total number of pens (LCM of 4, 5, 6) = 60 (30-30 of both type) Costing of 30 pens at 4 for Rs 1 4 = Rs 105 Costing of 30 pens at 5 for Rs 18 = Rs 108 Total cost price of 60 pens = 105+108 = Rs 213 Selling price of 60 pens at 6 for Rs 20 = 200        

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