Question

The Annual Decrease In The Population Of A City Was 10% And The Present Number Of Inhabitants Is 1620 What Was The Population 2 Years Hence?

Answer 1

Answer:

The population of inhabitants two years hence will be 1312.

Explanation:

Present population = 1620

The decrease population in the two years= 10℅ in each year

Hence, to find the population two years hence( Let it be X)

(90/100 * 90/100) * 1620 = X

Therefore, X = 1312

Therefore, the population of the given place after two years( 2 years hence) will be 1312.

Answer 2

Answer:

but answer is 2000 in book