Question

( frac{5+3+0.574 cdot 5+9+8 cdot 5+9 cdot 5=7}{7}= )
( begin{array}{ll}=) & 31+9=49 2 & a=18end{array} )

# If 7 is the mean of 5, 3, 0.5, 4.5, a, 8.5, 9.5 then the value of 'a' is (A) 12 (B) 49 (C) 18 fog 31

Solution

Instasolv

Solution