Arre, you are asking about that M.V. = P × [n(n+1)/2] × (r/1200) formula! The n(n+1)/2 is just a shortcut for adding 1+2+3... up to n, because each monthly deposit earns interest for a different number of months. It feels like counting bobbins on my father's table—the first one has been there the longest. But I'll be honest, for my life, cramming this formula is less useful than knowing how to measure a hem; I only need it to pass the board exam so Appa stops worrying that sewing won't feed my future.
#exams#study
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