A invested 30% more than B. B invested 40% less than C, who invested ₹8,000. The average of the total amount invested by all of them together (to the nearest ₹) is:

6,347

Investment of C = 8000

Investment of B = 0.6 x 8000

Investment of A = 1.3 x 0.6 x 8000

Total Investment = 8000 x (1 + 0.6 + 0.78)

Avg. Investment = \(\frac{2.38}{3}\) x 8000

                        = 6346.66 ≅  6347