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    Question

    If (7a + b) : (7a - b) = 7:3, then find the value of 

    a:b?
    A 5:14 Correct Answer Incorrect Answer
    B 7:14 Correct Answer Incorrect Answer
    C 3:14 Correct Answer Incorrect Answer
    D 5:18 Correct Answer Incorrect Answer

    Solution

    ATQ, (7a + b)/(7a - b) = 7:3 21a + 3b = 49a - 7b 7b + 3b = 49a - 21a 10b = 28a on sloving we get a:b = 5:14

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