If the mean of the lower and upper quartile is 10 and semi-interquartile range is 5, then the lower quartile and upper quartile respectively are

If the mean of the lower and upper quartile is 10 and semi-interquartile 

range is 5, then the lower quartile and upper quartile respectively are

  1. A

    2 and 12

  2. B

    3 and 13

  3. C

    4 and 14

  4. D

    5 and 15

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    Solution:

    We have,

    Q1+Q32=10 and Q3Q12=5

    Q1=5 and Q3=15

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