Reasoning
Simple Interest Shortcut
Calculate simple interest quickly in aptitude problems.
SI = PRT / 100
Formula Explanation
Simple interest is proportional to principal, rate and time.
Variables Explained
P = Principal; R = Annual rate in percent; T = Time in years.
Solved Example
Find SI on ₹2,000 at 5% for 3 years.
SI = 2000 × 5 × 3 / 100 = ₹300.