JEE Main 2026 Chemistry question

At 298 K, the molar conductivity of x% (w/w) MX solution (aqueous) is 123.5 S cm² mol⁻¹. The conductance of same solution is 1.9×10⁻³ S. The value of x is ×10⁻². (Given: cell constant=1.3 cm⁻¹; molar mass of MX is 75 g mol⁻¹, density of aqueous solution of MX at 298 K is 1.0 g mL⁻¹)