Comparing Very Small and Large Number MCQ

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• Mass of a neutron is 1.675 × 10-27 and mass of proton is 1.672 × 10-27. Find the total mass.
  ক

  3.347 × 10-27

  খ

  3.337 × 10-27

  গ

  3.447 × 10-27

  ঘ

  3.357 × 10-27