Salaries of B, C, D and E are in the ratio of 2 : 3 : 4 : 5 respectively. Their salaries are increased by 20 percent, 30 percent, 40 percent and 50 percent respectively. If the increased salary of D is Rs. 560, then what is the sum of the original salaries of B, C, D and E?

Answer: Option B

If salary of D = 4m
4m + 0.4(4m) = 560
4m + 1.6m = 560
m = $$\frac{560}{5.6}$$
m = 100
Original salary of B, C, D, E = 2m + 3m + 4m + 5m
= 14m
= 14 × 100
= 1400
Hence, the sum of the original salaries of B, C, D and E is Rs. 1400