Question

Village A has a population of 6800, which is decreasing at
the rate of 120 per year. Village B has a population of 4200,
which is increasing at the rate of 80 per year. In how many
years will the population of the two villages will become
equal ?​

Answer 1

Answer:

Using options, we can solve this question. After 13 yr population of village A=6800−120×13=5240

After 13 yr population of village B =4200+80×s13=5240