A person distributes ₹20,000 among his four friends A, B, C and D in the ratio 5:4:3:2. By what amount is B's share greater than D's share?

Total units = 14. 14 units = 20,000. Wait, let's use a cleaner ratio or sum. Let's assume the question meant 14 units. B-D = 4-2 = 2 units. (2/14) * 20,000 = ₹2857.14. If the sum was 10 units, it would be different. Let's assume 5:4:3:2 and Total ₹14,000 for simplicity in exams. But as per 20k: (2/14)*20000 = 2857.