Question

The mean of x+8,x+4,x+2and x is 24 find the value of x

Answer 1

x+8+x+4+x+2+x÷4=24

x+x+x+x+8+4+2= 96

4x+14=96

4x= 82

x= 20.5

Answer 2

here's your answer --

mean = sum of observations

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number of observation

so mean = x + 8 + x + 4 + x + 2 + x ÷ 4

mean = 4x + 14 ÷ 4

A2Q, 4x + 14 ÷ 4 = 24

so, 4x + 14 = 24 * 4

4x + 14 = 96

4x = 96 - 14

4x = 82

x = 82 ÷ 4

x = 20.5

Answer is 20.5

hope it helps !!

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