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Two plates are connected by filler welds of size $10$ mm and subjected to tension, as shown in the sketch. The thickness of each plate is $12$ mm. The yield stress and the ultimate tensile stress of steel are $250$ MPa and $410$ MPa, respectively. The welding is done in the workshop $(Y_{mw}=1.25)$. As per the Limit State Method of $IS \: 800:2007$, the minimum length (rounded off to the nearest higher higher multiple of $5$ mm) of each weld to transmit a force $P$ equal to $270$ kN is

  1. $100$ mm
  2. $105$ mm
  3. $110$ mm
  4. $115$ mm
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