A can complete a piece of work in 8\(\frac{1}{2}\) days for Rs.8500, but he complete that work with the help of B in just 6 days. The amount (in Rs.) to be paid to B will be?

2500

Efficiency of A = 12

Efficiency of B = 17 - 12 = 5

Work done by B in 6 days = 5 × 6 = 30

Amount for 102 work = Rs.8500

Amount for 1 work = \(\frac{8500}{102}\)

Amount for 30 work = \(\frac{8500}{102}\) × 30 = Rs.2500