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    Question

    In a stock of electronics (laptops + mobiles), if 25% of

    mobiles were laptops, then the number of laptops would have been 150% more than that of mobiles. Find the original percentage of laptops in the stock of electronics.
    A 23% Correct Answer Incorrect Answer
    B 50% Correct Answer Incorrect Answer
    C 45% Correct Answer Incorrect Answer
    D 62% Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, When 25% of the mobiles were laptops: Let the number of mobiles be ‘x’ Therefore, number of laptops = 2.5x Total number of electronics = x + 2.5x = 3.5x Now, original number of mobiles = x/0.75 = 1.33x Therefore, original number of laptops = 3.5x – 1.33x = 2.17x Required percentage = (2.17x/3.5x) × 100 = 62%

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