Village X has a population of 68000, Which is decreasing at the rate of 1200 per year. Village Y has a population of 42000, which is increasing at the rate of 800 per year. In how many years will the population of the two villages be equal ?
Choose the correct choice from the following choices:
A) 7 years
B) 6 years
C) 9 years
D) 13 years
E) 12 years
Let the population of village X and Y be equal after p years   Then, 68000-1200P=42000 + 800P   2000P=2600   P=13   so, their population will be equal after 13 years   ANSWER: 13 years
<result>D</result>
Village X has a population of 68000, Which is decreasing at the rate of 1200 per year. Village Y has a population of 42000, which is increasing at the rate of 800 per year. In how many years will the population of the two villages be equal ?