Subject

    Quantitative Aptitude

    Topic

    Average

    Sriram was conducting an experiment in which the average of 11 observations came to be 92, while the average of first five observations was 89, and that of the last five was 86. What was the measure of the 6th observation ?

    ক)
    134
    খ)
    137
    গ)
    139
    ঘ)
    141

    Explanation

    This can be done as, (11 × 92)  -  (5 × 89)  -  (5 × 86) = 1012- 445 - 430 = 137

    Find Tutors

    View all Tutors