Correct Answer - Option 1 : 9
Given:
S = {13, 15, 7, 9, 23, 17, 21}
Formula Used:
Arithmetic Mean = Sum of terms/Number of terms
Calculations:
Sum of terms of S = 13 + 15 + 7 + 9 + 23 + 17 + 21
⇒ Sum of terms of S = 105
Number of terms = 7
⇒ Arithmetic Mean of S = m = 105/7
⇒ m = 15
According to question, we need t find the value of (m/3 + 4)
(m/3 + 4) = (15/3 + 4)
⇒ (m/3 + 4) = 5 + 4
⇒ (m/3 + 4) = 9
∴ The value of (m/3 + 4) is 9.