Savings in Rs. be 1, 2, 3, 4,................ The sequence 1, 2, 3, 4,............is an A. P. with first term (a) = 1 and common difference (d) 1.
Here, total number of days in March = 31 i.e., n = 31
Thus, we have a = 1, d = 1 and n = 31.
Hence, amount of savings in March 2008 in 496.