You have 1000 atoms of a radioactive material. 5% of the atoms decay every minute. How many atoms of the material you will still have after 10 minutes?

You have 1000 atoms of a radioactive material. 5% of the atoms decay every minute. How many atoms of the material you will still have after 10 minutes?



  1.     950
  2.     599
  3.     100
  4.     500