Sum of observations = x+(x+2)+(x+4)+(x+6)+(x+8)=5x+20. Mean = (5x+20)/5=x+4=11. Therefore x=7.
If the mean of 5 observations x, x + 2, x + 4, x + 6 and x + 8 is 11, then value of x:
CUET UG 2023 — General Test Arithmetic
If the mean of 5 observations x, x+2, x+4, x+6 and x+8 is 11, then value of x:
Held on 15 Jun 2023 · Verified 13 Jul 2026.
Options
- A
7
- B
43
- C
51
- D
8
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