i need clarification, how we got 240000?

51. The Profitability index Project A is 2.5. The present value of cash inflows over the life of the project is Rs. 400,000 . Assuming A is a conventional project, what is the net present value (NPV) of the project? a. Rs. 240,000 b. Rs. 166,667 c. Rs. 600,000 d. Rs. 266,667