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    Question

    Three numbers β€˜X’, β€˜Y’ and β€˜Z’ are such

    that β€˜X’ is one-fourth of β€˜Y’ and β€˜Z’ is equal to the average of β€˜X’ and β€˜Y’. If the sum of these three numbers is 750, then find the second smallest number.
    A 100 Correct Answer Incorrect Answer
    B 250 Correct Answer Incorrect Answer
    C 400 Correct Answer Incorrect Answer
    D 150 Correct Answer Incorrect Answer

    Solution

    Let the value of β€˜Y’ be β€˜4x’ So, value of β€˜X’ = 4x/4 = β€˜x’ So, value of β€˜Z’ = (4x + x)/2 = 5x/2 = β€˜2.5x’ ATQ; x + 4x + 2.5x = 750 Or, 7.5x = 750 Or, x = 100 So, the second smallest number = β€˜Z’ = 2.5x = 2.5 Γ— 100 = 250

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