Question

the combined land area of the countries A and B is 199,973 square kilometer. Country A is larger by 573 kilometer. determine the land area of each country

Answer 1

Let the land area of country A = a
and the land area of country B = b

a + b = 199973
a = b + 573

(b + 573) + b = 199973
2b = 199400

b = 99700
a = 100273

The land area of country A is 100,273 square kilometers
and the land area of country B is 99,700 square kilometers.