Question

After how many years will an amount get doubled at the rate of 5 pcpa at simple interest?​

Answer 1

Answer:

let principle be x

amount = 2x

SI = amount - principle = 2x - x = x

now using formula SI = PRT /100

x = x × 5 × t / 100

100x = 5x × t

t = 100x / 5x

= 20 years