What will be the average of all the even numbers between 11 and 27?

Even numbers b/w 11 to 27 .

= 12 , 14 , 16 , 18 , 20 , 22 , 24 , 26

Average = \(\frac{First \;term \;+\; Last \;term }{2}\)

= \(\frac{12 \;+\;26 }{2}\)

= \(\frac{38}{2}\) = 19