20 mL of standard hard water having 2200 mg/L of CaCO3 when titrated against EDTA solution which gave an end point at 19 mL. The same EDTA was used to titrate 29 mL sample hard water
which gave an end point at 25 mL. 100 mL of the same hard water sample was boiled, cooled
and filtered and made up with distilled water to 100 mL. 23 mL of this water sample consumed
15 mL of the same EDTA. Calculate the temporary, permanent and total hardness of the water
sample.