The amount of simple interest during 'n' interest period is (where, i = interest rate based on the length of one interest period, p = principal)

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The amount of simple interest during 'n' interest period is (where, i = interest rate based on the length of one interest period, p = principal) Answer: p.i.n.

Question context

This question is part of ⚗️ Chemical Engineering within the broader 🛠️ Engineering Essentials subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.