SSC CGL Tier 1 :: Quantitative Aptitude QA Test 9

    Quantitative Aptitude » QA Test 9 » General Questions - Discussion
    [ A ]    495 right
    [ B ]    1485
    [ C ]    2221
    [ D ]    None of these
    1 .

    What is the geometric means of the observations 125, 729, 1331?
    Answer : Option A
    Explanation :
    G.M. = $3\sqrt{125 X 729 X 1331}$ = $3\sqrt{5^3 X 9^3 X 11^3}$ = 5 × 9 × 11 = 495
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