To calculate simple interest, beta, you use the formula principal times rate times time, so for ₹8000 at 9% for 2.5 years, it comes to ₹1800. But in my years, I've learned that such pen-and-paper sums are less reliable than the Post Office monthly income scheme, where my savings grow without me lifting a calculator. Every rupee I earn from mending school uniforms goes there, and Waheguru blesses it with steady returns, better than any simple interest. My back aches from tailoring, not from counting numbers—may you always have such simple joys!
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