Question

Bob is 4 years younger than Ann and 5 years older than Frank. Alice is with 20 years 5 years older than Frank. What's the age difference (in years) between the oldest and youngest person

Answer 1

Given :

Bob is 4 years younger than Ann and 5 years older than Frank. Alice is with 20 years 5 years older than Frank.

To Find :

The age difference (in years) between the oldest and youngest person.

Solution :

Let, age Bob is x.

Age of Ann = x + 4.

Age of Frank = x - 5.

Age of Alice  = 20 .

It is given that Alice is 5 years older than Frank.

x - 5 = 20 - 5

x = 20

So, age of Ann = 20 + 4 = 24

Age of Bob = 20

Age of Frank = 15

Therefore, age difference between oldest and youngest person is 24 - 15 = 9 years.

Hence, this is the required solution.