The mean of 9, 14, x, 16, 7 and 18 is 11.5. Find the value of x.
please give the answer with proper explanation and if you don't know please leave it don't say that I don't know.... it's ok because my half of the questions are been rejected.......
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it's very easy question of mathematics if you know the formula of finding mean
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Mean = 11.5
Numbers are 9, 14, x, 16, 7, 18
sum of the numbers = 9 + 14+ x+ 16 + 7 + 18
= 64 + x
Total numbers = 6
Mean = sum of the numbers
total numbers
11.5 = 64 + x
6
11.5 × 6 = 64 + x
69 = 64 + x
x = 69 - 64
x = 5
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