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    Question

    Three numbers β€˜A’, β€˜B’ and β€˜C’ are such

    that β€˜A’ is two-third of β€˜B’ and β€˜C’ is equal to the average of β€˜A’ and β€˜B’. If the sum of these three numbers is 450, then find the value of β€˜A’.
    A 100 Correct Answer Incorrect Answer
    B 150 Correct Answer Incorrect Answer
    C 120 Correct Answer Incorrect Answer
    D 90 Correct Answer Incorrect Answer

    Solution

    Let the value of β€˜B’ be β€˜6x’ So, value of β€˜A’ = (2/3) Γ— 6x = β€˜4x’ So, value of β€˜C’ = (4x + 6x)/2 = 10x/2 = β€˜5x’ ATQ; 4x + 6x + 5x = 450 Or, 15x = 450 Or, x = 30 So, value of β€˜A’ = 4x = 4 Γ— 30 = 120

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