Quote

The U.S. Census provides information about the current U.S. population as
well as approximate rates of change. Three rates of change are provided:
a. There is a birth every 7 seconds
b. There is a death every 13 seconds
c. There is a new immigrant every 35 seconds
Using those three rates of change, and a current U.S. population of
307,357,870, write a program to calculate the U.S. population in exactly one
year (365 days). Your algorithm should output the result of your calculations.

Quote (carteblanche @ Sep 3 2015 05:33pm)

in pseudocode:

// rate of population change in seconds
BIRTH_RATE = 7;
DEATH_RATE = 13;
IMMIGRANT = 35;

basePopulation = 307357870;
duration = 365 days * 24 hours / 1 day * 60 minutes / 1 hour * 60 seconds / 1 minute; // time elapsed in seconds

changeInPopulation = duration / BIRTH_RATE + duration / IMMIGRANT - duration / DEATH_RATE;
totalPopulation = basePopulation + changeInPopulation;

Quote (carteblanche @ Sep 3 2015 06:33pm)

in pseudocode:

// rate of population change in seconds
BIRTH_RATE = 7;
DEATH_RATE = 13;
IMMIGRANT = 35;

basePopulation = 307357870;
duration = 365 days * 24 hours / 1 day * 60 minutes / 1 hour * 60 seconds / 1 minute; // time elapsed in seconds

changeInPopulation = duration / BIRTH_RATE + duration / IMMIGRANT - duration / DEATH_RATE;
totalPopulation = basePopulation + changeInPopulation;