Solution:
As are in A.P.
(1)
If then (1) give us
In this case common difference is 2 and sum to 10 terms is
If
In this case common difference is 4/5, and sum to 10 terms is
If ,then (1) becomes
Not possible as
Suppose are in A.P., then sum to 10 terms of the A.P. is
As are in A.P.
(1)
If then (1) give us
In this case common difference is 2 and sum to 10 terms is
If
In this case common difference is 4/5, and sum to 10 terms is
If ,then (1) becomes
Not possible as