JEE Main 2023 Physics question

A thin rod having a length of 1 m and area of crosssection is suspended vertically from one end. The rod is cooled from 210°C to 160°C. After cooling, a mass M is attached at the lower end of the rod such that the length of rod again becomes 1 m. Young's modulus and coefficient of linear expansion of the rod are and , respectively. The value of M is kg. (Take g = 10 m)