Rini has mixed two colours ‘$$C_1$$’ and ‘$$C_2$$’ in the ratio 2 : 3. If the rate of the colour ‘$$C_1$$’ is ₹500 per unit and she is selling the mixture of the two colours at ₹650 per unit at breakeven price, then what is the rate (in ₹) per unit of the second colour, that is, ‘$$C_2$$’?

A

750

B

725

C

760

D

765