At what rate of interest whould rs 1800 amount to 2500 in 2 years

A = P (1+r) ^t

A = amount made after the specified time

P = original amount of money

r = rate

t = time

2500 = 1800 (1 + r) ^2

2500/1800 = (1800 (1+r) ^2) / 1800

1.3888 = (1+r) ^2

1.17851 = (1 + r)

1.17851 - 1 = r

Rate =.17851