Question

A certain sum of money amounts to Rs.5292 in two years and Rs. 5556.60 in three years, interest being compounded annually. Find the rate percent and original principal at beginning.​

Answer 1

Answer:

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Answer 2

Answer:

Step-by-step explanation:

Sum after 2 years=Rs.5292

Sum after 3 years =Rs.5556.60

Interest for onr year =5556.60−5292=Rs.264.60

C.I for 1 year=S.I for 1 year  

Interest=  100  PRT

​ ⇒264.60=  100  5292×R×1

​ ⇒R=  5292  264.60×100  =5%

Let the sum=Rs. x

Amount =Rs.5292, Time 2 years, R=5%

Amount=P(1+  100 R  )  t

 ⇒5292=x(1+  100  5  )  2

 ⇒5292=x×  100  105 ×  100  105

​⇒x=  105×105

5292×100×100

​ =Rs.4800