Refer to the cash flow diagram of uniform gradient in a cash flow (in the given figure), the gradient is: A. Rs. 10000 per year B. Rs. 15000 per year C. Rs. 20000 per year D. Rs. 25000 per year

The correct answer is: A. Rs. 10000 per year.

The gradient is the amount by which the cash flow increases or decreases each year. In this case, the cash flow increases by Rs. 10000 each year. This can be seen by the fact that the cash flow is Rs. 10000 higher in year 2 than it was in year 1, and it is Rs. 20000 higher in year 3 than it was in year 2.

Option B is incorrect because the cash flow does not increase by Rs. 15000 each year. Option C is incorrect because the cash flow does not increase by Rs. 20000 each year. Option D is incorrect because the cash flow does not increase by Rs. 25000 each year.