Question
In what time will Rs. 21000 amount to Rs. 27951 @ 10%
compound interest?Solution
A = P ( 1 + R/100)t 27951 = 21000 ( 1 + 10/100) t 27951 /21000 = (11/10)t 1331/1000 = (11/10) t  (11/10)³ = (11/10) t t= 3 years The required time is 3 years.
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