Compared to its surroundings, the concentration of solutes is low inside a cell so, the cell is in a hypertonic, hypotonic or isotonic solution?

The cell is in a hypertonic solution.

Explanation:

The solution is hypertonic because the amount of solute (s) is higher outside of the cell than it is inside the cell, so the solvent (e. g. water) would move from the cell to the solution in order to obtain equilibrium between the two.