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    Question

    β€˜P’ and β€˜Q’ started a business by investing Rs.

    4,000 and Rs. 6,000 respectively. β€˜x’ months later, they admitted β€˜R’ as a partner who invested Rs. 8,000. If at the end of the year, the profit share of β€˜P’ was Rs. 6,000 out of the total profit of Rs. 18,000, then find the value of β€˜x’.
    A 6 Correct Answer Incorrect Answer
    B 9 Correct Answer Incorrect Answer
    C 4 Correct Answer Incorrect Answer
    D 5 Correct Answer Incorrect Answer
    E 3 Correct Answer Incorrect Answer

    Solution

    Let β€˜R’ invested for β€˜m’ months. So,
    x = 12 βˆ’ m Ratio of profit shares of β€˜P’, β€˜Q’ and β€˜R’
    = (4000 Γ— 12) : (6000 Γ— 12) : (8000 Γ— m) = 48 : 72 : 8m ATQ, 6000 / 18000 = 48 / (48 + 72 + 8m) 1 / 3 = 48 / (120 + 8m) 120 + 8m = 144 8m = 24 m = 3 So, x = 12 βˆ’ 3 = 9

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