Question

There are 5 terms in arthemetic progression . The sum of these terms is 55

Answer 1

Answer:

let the 5 terms of the arthemetic progression are

(a-2b), (a-b), a , (a+b) , (a+2b)

here b is the common difference

so,

a-2b+a-b+a+a+b+a+2b=55

=> 5a=55

=> a=55/5=11

so the middle term of the series is 11