Question

The population of a place increased by 54000 in 2003 at the rate of 5 percent per annum What was poplation in 2001 What will be population in 2005

Answer 1

Solution :

p = 54000
r = 5

in 2001

A = 54000(1 + 5/100) pow 2
A = 54000(105/100) pow 2
for 2001 reciprocal
A = 54000(100/105) pow 2
A = 48979.59
approx 48980
so population in 2001 is 48980

in 2005
A = 54000(1 + 5/100) pow 2
A = 54000( 1.05) pow 2
A = 54000(1.1025)
A = 59535
so population in 2005 is 59535

Hope that helps !!!!