To solve this problem, we need to find the income of A, B, and C.

Let`s start by finding the income of B. We are given that 10% of B`s income is equal to 20% of C`s income, and the income of C is Rs. 2,000. So, we can calculate B`s income as follows:

(10/100) * B = (20/100) * 2000

0.1B = 0.2 * 2000

0.1B = 400

B = 400 / 0.1

B = Rs. 4,000

Next, we are told that 5% of A`s income is equal to 15% of B`s income. Using the income of B that we just found, we can calculate A`s income:

(5/100) * A = (15/100) * 4000

0.05A = 0.15 * 4000

0.05A = 600

A = 600 / 0.05

A = Rs. 12,000

Finally, we need to find the total income of A, B, and C:

Total income = Income of