Question

The ratio of the ages of two persons is 4: 3. If their
average age is 21 years, find the age of the youngest
person.

please give the correct answer

I will mark u as brainist​

Answer 1

Answer:

ratio is 4:3.

let the ages be 4x and 3x.

therefore- 4x+3x=21*2

7x=42

x=6

therefore youngest person is 18.

Step-by-step explanation:

Please mark me as brainliest.