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    The ratio of the cost price and selling price of a bulb is 20: 25. What is the profit percentage?
    Question

    The ratio of the cost price and selling price of a bulb is 20: 25. What is the profit percentage?

    A.

    20 percent

    B.

    25 percent

    C.

    15 percent

    D.

    30 percent

    Correct option is B

    Given:
    Cost Price (C.P) : Selling Price (S.P) = 20:25
    Formula Used:
    Profit % = [(S.P - C.P) / C.P]×100
    Solution:
    Let the cost price (C.P) = 20x and selling price (S.P) = 25x.
    Profit = S.P - C.P = 25x - 20x = 5x
    Profit percentage = (5x / 20x)×100 = 25%
    Therefore, the profit percentage is 25%.

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