Question

The mean of the numbers 16,35, 56, x+ 8, 3x+2 and 29 is 31. Find the value of x.

Answer 1

Step-by-step explanation:

16,35, 56, x+ 8, 3x+2 and 29

mean = 31

ATQ

$\frac{16 + 35 + 56 + x + 8 + 3x + 2 + 29}{6} = 31 \\ 146 + 4x = 31 \times 6 \\ 4x = 186 - 146 \\ x = \frac{40}{4} \\ x = 10$