The average of 32, 27, 28, 31 , 15  and x is 30 . What will be the value of x ?

46 50 47 48

47

Average =  \(\frac{sum \;of\; all\; numbers }{number\; of\; terms }\) 30 =  \(\frac{32\;+\;27\;+\; 28+\;+\; 31\;+15 \;+ \;x }{6}\) 180 = 133 + x  x = 47