Question

There are 12 pairs of cranial nerves connected in the brain. 10 of these pairs are related to the site, smell, taste, and sound. What percent of the pairs of cranial nerves are related to these senses?

Answer 1

Nearly 83.33%

Explanation:

There are 12 pairs of cranial nerves connected in the brain.

10 of these pairs are related to the site, smell, taste, and sound.

So,

12 - 100%

10 - x%

Write a proportion:

`(12)/(10)=(100)/(x)`

Cross multiply

`12\cdot x=10\cdot 100\\ \\12x=1,000`

Divide by 12:

`x=(1,000)/(12)=(250)/(3)\approx 83.33\%`