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5. Vivan borrowed a sum of money from a bank at 9% per annum. If he paid 35940 as interest after three years, find the sum he borrowed and the total money he repaid.(Please give the right Answer). |
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Answer» Step-by-step EXPLANATION:For the payment of RS. 43,200 at the END of the first year : A = Rs. 43200 ; n = 1 year and r = 8 % . To find P. A=P 1 (1+ 100 r ) n ⇒43200=P 1 (1+ 100 8 ) 1 ⇒P 1 =Rs.43200× 108 100 =Rs.40000 For the payment of Rs. 34,992 at the end of the second year : Rs.34922=P 2 (1+ 100 8 ) 2 ⇒P 2 =Rs.34922×( 108 100 ) 2 ⇒P 2 =34922× 108 100 × 108 100 =Rs.30000 ∴ Sum borrowed = Rs. 40000 + Rs. 30000 = Rs. 70000 |
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