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ICSE Class 8 Answered

A certain sum in simple interest becomes 6500 in 3 years and 7500 in 5 years. Find the principal and rate of interest?
Asked by chetandbpu | 20 Mar, 2021, 06:22: PM
answered-by-expert Expert Answer
T o t a l space A m o u n t space equals P open parentheses 1 plus fraction numerator n R over denominator 100 end fraction close parentheses
6500 equals P open parentheses 1 plus fraction numerator 3 R over denominator 100 end fraction close parentheses minus negative negative negative negative negative negative left parenthesis 1 right parenthesis
7500 equals P open parentheses 1 plus fraction numerator 5 R over denominator 100 end fraction close parentheses minus negative negative negative negative negative negative left parenthesis 2 right parenthesis
left parenthesis 1 right parenthesis divided by left parenthesis 2 right parenthesis
6500 over 7500 equals fraction numerator P open parentheses 1 plus fraction numerator 3 R over denominator 100 end fraction close parentheses over denominator P open parentheses 1 plus fraction numerator 5 R over denominator 100 end fraction close parentheses end fraction
P equals 5000 space a n d space R equals 10 percent sign
Answered by Utkarsh Lokhande | 21 Mar, 2021, 09:27: PM

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