Question

    A laptop’s price increases by 7% annually. If its present

    price is ₹50,000, what will be the price after 2 years?
    A ₹57,245 Correct Answer Incorrect Answer
    B ₹41,656 Correct Answer Incorrect Answer
    C ₹46,600 Correct Answer Incorrect Answer
    D ₹36,656 Correct Answer Incorrect Answer

    Solution

    ATQ,

    If there is successive increase of ‘a%’ and ‘b%’ on a certain quantity/value, then the net percentage increase = a% + b% + [(a × b)/100]%

    So, the net percentage increase = 7% + 7% + [(7 × 7)/100]%

    = 14% + (49/100)% = 14% + 0.49% = 14.49%

    So, the price of the laptop after 2 years = 1.1449 × 50000 = ₹57,245

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