1
Principal (P) = Rs 50,000
4
Simple Interest = (50,000 × 6 × 2) ÷ 100 = Rs 6,000
5
Maturity Amount = Principal + Interest = 50,000 + 6,000 = Rs 56,000
Worked Example 2: EMI Calculation
Home loan of Rs 10,00,000 for 20 years at 8% annual interest. Find monthly EMI.
2
R = 8% annually = 8÷12 = 0.67% monthly = 0.0067
3
n = 20 years = 240 months
4
EMI = 1000000 × 0.0067 × (1.0067)^240 ÷ [(1.0067)^240 - 1]
5
EMI = Rs 8,364 (approximately)
Shortcut #2 - Quick EMI Estimation
For rough EMI calculation: Loan Amount ÷ 100, then multiply by factor
8% for 20 years: Factor = 0.84
9% for 15 years: Factor = 1.01
10% for 10 years: Factor = 1.32
#1 COMMON MISTAKE
Students confuse Simple Interest with Compound Interest in FD calculations. Most bank FDs use Simple Interest, NOT Compound Interest. Always check the question carefully. Banks mention specifically if it's compound interest.
Shortcut #3 - Deposit Types Memory
SCFR Rule: Savings-Current-Fixed-Recurring
Interest order: Fixed > Recurring > Savings > Current (zero)
Liquidity order: Current > Savings > Recurring > Fixed