Given: -

Amount saved by a man in 20 years is Rs.660000.

Let the amount saved by him in the first year be.

In every succeeding year, he saves Rs.2000 more than what he saved in the previous year.

Increment of saving of the year when compared last year is Rs.2000

Hint: - The above information looks like the savings are in Arithmetic Progression.

Amount saved in first year = a

Common difference = d = ₹2000

Total number of years = n = 20

The total amount saved in 20 years is ₹660000

Sum of n terms in an A.P

a = 14000

∴ In the first year, he saved ₹14000.