1.

) Numbers 3, 5, 7, x, x + 2, 15, 17and 21 are written in ascendingorder. If their median is 12, thevalue of x will be

Answer»

Total number of term = 8Median=( sum of 4th and 5th term)/2 =(x+x+2)/2 12 = (2x+2)/2 12. = x+1then x = 11

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