a sum of 2000rs become rs2205@5%per annum compound interest.find the time
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Given,
P=2000Rs.
R=5%p.a.
A=2205.
T=?
By using formula,
A=P(1+R/100)n
2205=2000(1+5%/100)n
2205/2000=(1+1/20)n
441/400=(21/20)n
(21/20)²=(21/20)n
Therefore, n=2years
P=2000Rs.
R=5%p.a.
A=2205.
T=?
By using formula,
A=P(1+R/100)n
2205=2000(1+5%/100)n
2205/2000=(1+1/20)n
441/400=(21/20)n
(21/20)²=(21/20)n
Therefore, n=2years
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