Question

if the mean of 16, 14, X, 23, 20 is 18, find the value of X
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Answer 1

Answer:

As we  know, x=nx1+x2+....+xn

here x=18

n=5

So, 18=16+14+x+23+20/5

∴90=73+x

∴x=90−73

x=17

Answer 2

Answer:

The value of x is 17.

Step-by-step explanation:

$\frac{16 +14+x+23+20}{5} = 18\\\implies 16 +14+x+23+20 = 18 \times 5 \\\implies 73 +x = 90\\\implies x = 90 - 73 = 17$

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