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प्रश्न
Mr. Gupta opened a recurring deposit account in a bank. He deposited Rs. 2500 per month for two years. At the time of maturity he got Rs. 67,500. Find:
1) the total interest earned by Mr Gupta.
2) the rate of interest per annum.
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उत्तर
1) Monthly instalment = Rs. 2500
n = 24, Amount deposited = 2500 x 24 = Rs. 60000
Maturity value = Rs. 67500
Interest on his deposit = Rs. (67500 – 60000) = Rs. 7500
2) Now Interest = `("n"("n"+1))/2 xx ("Instalment" xx "Rate")/(100 xx 12)`
`7500 = (24 xx 25)/2 xx (2500 xx "Rate")/(100 xx 12)`
Rate = `(7500 xx 100 xx 24)/(24 xx 25 xx 2500)` = 12% p.a
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संबंधित प्रश्न
Virat opened a Savings Bank account in a bank on 16th April 2010. His pass book shows the following entries:
| Date | Particulars |
Withdrawal (Rs.) |
Deposit (Rs.) | Balance (Rs.) |
| April 16, 2010 | , By cash | - | 2500 | 2500 |
| April 28th | By cheque | - | 3000 | 5500 |
| May 9th | To cheque | 850 | - | 4650 |
| May 15th | By cash | 1600 | 6250 | |
| May 24th | To cash | 1000 | - | 5250 |
| June 4th | To cash | 500 | - | 4750 |
| June 30th | To cheque | - | 2400 | 7150 |
| July 3rd | By cash | - | 1800 | 8950 |
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