JEE Main Physics question

A body of mass m₁ moving with a uniform velocity of 40 m/s collides with another mass m₂ at rest, and then the two together begin to move with a uniform velocity of 30 m/s. The ratio of their masses (m₁/m₂) is

• (A)0.75
• (B)1.33
• (C)3.0Correct
• (D)4.0