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CBSE Class 8 Answered

1. At what interest rate percent per annum compounded annually, will Rs. 5000 amount to Rs. 6050 in 2 years? 2. Find Princple(P) , if Amount A = Rs. 74048, Rate R = 10% p.a, compounded half  yearly for 1.5 years.
Asked by ajayrath7 | 06 Feb, 2018, 06:03: PM
answered-by-expert Expert Answer
begin mathsize 16px style 1.
straight P equals Rs. space 5000 comma space straight A equals Rs. space 6050 comma space straight n equals 2 space years comma space straight R equals ?
Use space formula
straight A equals straight P open parentheses 1 plus straight R over 100 close parentheses to the power of straight n
6050 equals 5000 open parentheses 1 plus straight R over 100 close parentheses squared
Find space straight R space you space will space get space 10 percent sign space straight p. straight a.
2. space
straight A equals Rs. space 74048 comma space straight R equals 10 percent sign space straight p. straight a. comma space straight n equals 1.5 space year comma space straight P equals ?
straight A equals straight P open parentheses 1 plus straight R over 200 close parentheses to the power of 2 cross times straight n end exponent
74048 equals straight P open parentheses 1 plus 10 over 200 close parentheses to the power of 2 cross times 1.5 end exponent
straight P equals Rs. space 63965.45 end style
Answered by Sneha shidid | 07 Feb, 2018, 09:29: AM
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