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ICSE Class 8 Answered

4000 amount to 5000 in 8 years ; in what time will 2100 amount to 2800 at the same rate ?
Asked by nishabiju17 | 16 Jan, 2020, 08:21: PM
answered-by-expert Expert Answer
4000 amount to 5000 in 8 years
straight I equals 1000
1000 equals fraction numerator 4000 cross times 8 cross times straight r over denominator 100 end fraction
straight r equals 3.125 percent sign

now
straight I equals 700
700 equals fraction numerator 2100 cross times straight n cross times 3.125 over denominator 100 end fraction
straight n equals 10.66 space years
Answered by Arun | 18 Jan, 2020, 11:48: AM

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