Pls explain this????

Dear student
Your question image is not clear and text of the question is not legible, although assuming it as a numerical,

The given table denotes the solubility of different substances at different temperatures . It is evident that solubility of different compounds is different at different temperatures,  and solubility is increasing with increasing temperature.

so, to obtain the saturated solution of potassium nitrate at a particular temperature, you may look into the table to find value of solubility.

Regards