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Simple interest at a fixed rate and time changes in direct proportion with the:
ABank name
BBranches
CWeekday
DPrincipal
Answer & Solution
Correct answer: D. Principal
1. Double the principal, double the interest.
2. Simple interest is directly proportional to principal.
3. Compound interest does not behave so simply.
_Source: NCERT Class 8 Mathematics, Chapter 13, Direct and Inverse Proportions._
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