The population after 144 years is 32,00,000.
Step-by-step explanation:
Time , t = 48 years
Current population, N₀ = 400,000
Population in 144 years = ?
We first need to find the doubling time.
Doubling time period , n = 144 / 48
n = 3
To find the population after a certain period of time, we use the formula
N = N₀ X 2ⁿ
N = 400,000 X 2³
N = 32,00,000
Therefore, the population after 144 years is 32,00,000.