Question

a library has 8000 register members. The membership increase at the rate of 5% every six months. After what times will the total membership be 9261?​

Answer 1

A=P(1+r/100)^t

so A/P =(1+r/100)^t

A=9261 & P=8000

9261/8000=(1+5/100)^t

(21/20)^3=(1+1/20)^t

(21/20)^3=(21/20)^t

campare on both side

t=3years

Answer 2

Answer:

Answer:time=¹½

hope it is helpful.