Axial deformation of Bar

A tapered bar of length 600 mm has a smaller diameter of 20 mm at one end and a larger diameter at the other end. The diameter gradient is 0.05. It is subjected to an axial tensile load of 10 kN. If the Young’s modulus of the material of the bar is 2.07×108 kN/m2, find the elongation of the bar.