Question

The population of a country depreciates 5% every year. If after 2 years the population is 72600. Find the present Population ?

Answer 1

Answer:

here 72600 is the 95% of the second year therefore the remaining 5% will be,

72600 = 95% × Y

Y = 72600 × 100/95

Y = 76421.052631578.

Now 76421.052631578 is the 95% of the first year therefore the remaining 5% will be,

76421.052631578 = 95% × Y

Y = 76421.052631578 × 100/95

Y = 80443.213296398.

Therefore 80443.213296398 is the present population