Which of the following statement is incorrect?
$$\eqalign{ & 1.{\text{NPAs}} = \left[ {\frac{{{\text{Gross or Net NPAs}}}}{{{\text{Total advances}}}}} \right] \times 100 \cr & 2.{\text{Net NPAs}} = {\text{Gross NPAs}} - {\text{Provision for NPAs}} \cr & 3.{\text{CAR}} = \frac{{{\text{Tier two capital}} + {\text{Tier three capital}}}}{{{\text{Risk weighted assets}}}} \cr} $$
  4. Capital fund has two tiers - Tier I or core capital Tier II