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    Question

    Selling price of a cap is at 10% profit, and that of a

    scarf is 25%. If total profit on selling 6 caps and 3 scarves is Rs. 48, and on selling 4 caps and 5 scarves is Rs. 65, what is the cost price of a cap?
    A Rs.20 Correct Answer Incorrect Answer
    B Rs.56 Correct Answer Incorrect Answer
    C Rs.40 Correct Answer Incorrect Answer
    D Rs.25 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let CP of cap = 100x, scarf = 100y

    SP of cap = 110x, scarf = 125y

    Profit:

    6(110x) + 3(125y) – 6(100x) – 3(100y) = 48

    β‡’ 60x + 75y = 48 ……… (1)

    4(110x) + 5(125y) – 4(100x) – 5(100y) = 65

    β‡’ 40x + 125y = 65 ……… (2)

    (1) Γ— 2 β†’ 120x + 150y = 96

    (2) Γ— 3 β†’ 120x + 375y = 195

    Subtract:

    -225y = -99 β‡’ y = 0.44

    Put in (1):

    60x + 75 Γ— 0.44 = 48

    β‡’ 60x + 33 = 48 β‡’ x = 0.25

    CP of cap = 100x = Rs. 25

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