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CBSE Class 8 Answered

Rachana borrowed a certain sum at the rate if 15 percent per annum if she paid at the end of two years ₹1290 an interest compounded annually find the sum she borrowed  
Asked by ssumina722 | 08 Sep, 2019, 06:26: PM
answered-by-expert Expert Answer
begin mathsize 16px style straight A space equals space straight P open parentheses 1 space plus space straight r over 100 close parentheses to the power of straight n space
rightwards double arrow 1290 equals space straight P space open parentheses 1 space plus space 15 over 100 close parentheses squared
rightwards double arrow straight P space equals space 1290 cross times fraction numerator 100 space over denominator 115 end fraction space cross times fraction numerator 100 space over denominator 115 end fraction space equals 975.42
So comma space Rachana space borrowed space Rs. space 975.42. end style
Answered by Yasmeen Khan | 09 Sep, 2019, 10:44: AM
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