I need help with this like rn

One-third of the people from country a claim that they are from country b, and the rest admit they are from country a. one-fourth of the people from country claim that they are from country a, and the rest admit they are from country b. in a combined census of the two countries, one-half of the total claimed to be from a. what is the ratio of the populations of country a to that of country b.

Is it true that product of 3 consecutive natural numbers is always divisible by 6? justifyyour answer

What does x = in this equation x+3+2x=x+5