Q:  Adopt a value of H = 70 km/sec/Mpc.

      Convert the value of H to units of 1/seconds.
      What is it in those units?

                  70 km/sec      7 x 10^(7) m/s                            1
           H  =  ----------  =  -------------------  =    2.3 x 10^(-15)  ---
                    1 Mpc         3.08 x 10^(22) m                         s




      What is the age of the universe based on this
      value of H?

                      1             1 
            age  =  -----  =   -------------------  =  4.4 x 10^(14) s
                      H         2.3 x 10^(-15) 1/s


                           =    14 billion years