SI = (5000 × 12 × 2.5)/100 = 1500. Amount = 5000 + 1500 = 6500
If amount = 2P, then SI = P. Using P = (P × R × 10)/100; 100 = 10R; R = 10% p.a.
SI = (24000 × 8.5 × 4)/100 = 8160
SI = 11700 - 9000 = 2700. Using T = (SI × 100)/(P × R) = (2700 × 100)/(9000 × 15) = 2 years
SI = 8640 - 7200 = 1440. Using SI = (P × R × T)/100; 1440 = (7200 × R × 2)/100; R = 10%
SI for 2 years = 6000 - 5500 = 500. SI per year = 250. SI for 3 years = 750. Principal = 5500 - 750 = 4000
Increase = 2,500 - 2,000 = 500. Percentage = (500/2,000) × 100 = 25%
Total spent = 25% + 20% + 15% = 60%. Remaining = 40% = ₹8,000. Total income = 8,000/0.40 = ₹20,000
A = 10,000(1.10)² = 10,000 × 1.21 = ₹12,100. CI = 12,100 - 10,000 = ₹2,100
SI = (5000 × 8 × 3)/100 = 1,200. Total = 5,000 + 1,200 = ₹6,200