The pitch and the number of divisions, on the circular scale, for a given screw gauge are $0.5 \mathrm{mm}$ and $100$ respectively. When the screw gauge is fully tightened without any object, the zero of its circular scale lies $3$ divisions below the mean line.

The readings of the main scale and the circular scale, for a thin sheet, are $5.5 \mathrm{mm}$ and $48$ respectively, the thickness of this sheet is:

• A

  $5.755 mm$
• B

  $5.740 mm$
• Correct answer
  C

  $5.725 mm$
• D

  $5.950 mm$

Hence, the correct answer is option: 'C'.