Question

    If (p/q) = (7/8) and (q/r) = (3/11), then the find the

    value of {(r – p)/(p + q)}.
    A 69/41 Correct Answer Incorrect Answer
    B 67/45 Correct Answer Incorrect Answer
    C 63/35 Correct Answer Incorrect Answer
    D 61/29 Correct Answer Incorrect Answer

    Solution

    Since, (p/q) = (7/8) So, q = (8p/7) Also, (q/r) = (3/11) So, r = (11q/3) = (88p/7) {(r – p)/(p + q)} = {(88p/21) – p}/{p + (8p/7)} = (67p/21) × (7/15p) = (67/45) 

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