The length of a combined footing for two columns is L, the centre to centre distance between the columns is l, and the distance of centre of gravity of the column loads from the centre of left hand column is $x$ . In order to have uniformly distributed load on the footing, the projection ( $a_{2}$ ) on the right hand side of the column is

- 1
  
  $a_{2} = \frac{L}{2} + (l - x)$
- 2
  
  $a_{2} = \frac{L}{2} - (l - x)$
- 3
  
  $a_{2} = L + (l - x)$
- 4
  
  $a_{2} = L - (l - x)$

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