Question

Biologist Dr. Cytoplasm wants to know how many elephants in the nature reserve have broken tusks . Of the 30 elephants that he observes in random places in the reserve, he counts 8 elephants with broken tusks. Of the 600 elephants in the reserve, how many can he expect to have broken tusks?

Answer 1

Of the 600 elephants that he observes in random places in the reserve, he counts
`(8)/(30)(600)=160` elephants with broken tusks.

Explanation:

Let x denotes number of elephants having broken tusks out of 600 elephants.

Of the 30 elephants that he observes in random places in the reserve, he counts 8 elephants with broken tusks.

So,

Of the 1 elephants that he observes in random places in the reserve, he counts
`(8)/(30)` elephants with broken tusks.

Therefore,

Of the 600 elephants that he observes in random places in the reserve, he counts
`(8)/(30)(600)=160` elephants with broken tusks.