Question

Find the rate of interest when compounded annually
a. A = 6760, P = 6250, T = 2 years
b. A = 1,21,000, P = 64,000, T = 2 years
c. A = 8100, P=6400, T = 2 years
d. A = 10,890, P = 9000, T = 2 years​

Answer 1

$a = p(1 + r) {}^{t}$

now A is amount

P is principal

t is time