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SSC Sample Paper Mock Test-9 SSC CGL Tear-II Paper-1

  • question_answer
    Out of 24 students of a class 6 are 1 m 15 cm in height, 8 are 1 m 5 cm and the rest are 1 m 11 cm. What is the average height of the students?

    A) 1 m      

    B)  1 m 10 cm

    C)  1 m 20 cm

    D)  2 m

    Correct Answer: B

    Solution :

    Sum of the heights of all the 24 students \[=(6\times 115+8\times 105+10\times 111)\,\,\text{cm}=2640\,\,\text{cm}\] \[\therefore \] Average height \[=\frac{2640}{24}=110\,\,\text{cm}=1\,\,\text{cm}\,\,10\,\,\text{cm}\]


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