Write a program called age.rb that asks a user how old they are and then tells them how old they will be in 10, 20, 30 and 40 years. Below is the output for someone 20 years old.
# output of age.rb for someone 20 yrs old
How old are you?
In 10 years you will be:
30
In 20 years you will be:
40
In 30 years you will be:
50
In 40 years you will be:
60