Question

Find out the total population of a town if the ratio between the literate and the illiterate on
the inhabitants of the town is 2:5. The numbers of illiterate exceeds the number of illiterates
by 9,000.
​

Answer 1

Answer:

21000

Step-by-step explanation:

Let the number of literate people be 2x.

That means the number of illiterate people, according to our ratio, is 5x.

And the TOTAL number of people in the town is the literates plus the illiterates, or 2x + 5x, which is 7x.

And we also know

2x + 9000 = 5x

Now we can solve for x:

2x + 9000 = 5x

9000 = 3x

3000 = x

And since the population of the town is 7x, that means the population is 21,000.