The following data has been arranged in ascending order. If their median is 63, find the value of x: 34,37,53,55,x,x+2,77,83,89 and 100
A
61
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B
62
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C
63
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D
65
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Solution
The correct option is B62 The series in ascending order is: 34,37,53,55,x,x+2,77,83,89 and 100 The series has 10 numbers, even numbers. Hence, the median will be the mean of the two middle numbers Median = mean of 5th and 6th terms 63 = x+x+22 126=2x+2 2x=124 x=62