John is n years old now. How old was he 10 years ago? What will be his age in 20 years time?

Discussion in 'Calculator Requests' started by math_celebrity, Mar 31, 2020.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    John is n years old now. How old was he 10 years ago? What will be his age in 20 years time?

    10 years ago means we subtract 10 from n:
    n - 10

    20 years time or 20 years from now means we add 20 to n:
    n + 20
     

Share This Page