The world needs a new source of energy, an unspillable source.

If the reproduction constant (neutron multiplication factor) is 1.000200 for a chain reaction in a fission rea

If the reproduction constant (neutron multiplication factor) is 1.000200 for a chain reaction in a fission reactor and the average time between successive fissions is 1.20 ms, by what factor will the reaction rate increase in 1.05 min?

I have no idea. :S
Any help, or explanation.