Seven boys-Rajan, Shyam, Vardhan, Mithra,Vimal, Raj and Kishan are sitting in a row.Shyam sits to the immediate left of Vardhan and third to the right of Rajan, whereas Mithra, who sits at the left extreme , is next to Kishan.
After arranging all the boys as per the conditions given in the data, if Rajaan now exchanges his place with Mithra and Vardhan exchanges his place with Vimal then how many persons will be there between Vimal and Rajan?
