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Once the amount is known, compound interest is found as:
AAmount minus principal
BAmount plus principal
CAmount times principal
DAmount over principal
Answer & Solution
Correct answer: A. Amount minus principal
1. The amount includes the money first put in.
2. Remove that to leave the earnings.
3. Compound interest is amount minus principal.
_Source: NCERT Class 8 Mathematics, Chapter 8, Comparing Quantities._
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