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प्रश्न
John deposited Rs 400 every month in a bank’s recurring deposit account for `2(1)/(2)` years. If he gets Rs 1085 as interest at the time of maturity, then the rate of interest per annum is
पर्याय
6%
7%
8%
9%
उत्तर
Deposit(P) = Rs400 per month
Period(n) = `2(1)/(2)` years = 3 months
Interest = Rs1085
Let r% be the rate of interest
∴ Interest
= `("P" xx "n" xx ("n" + 1))/(2 xx 12) xx "r"/(100)`
1085 = `₹(400 xx 30 xx 31 xx "r")/(2 xx 12 xx 100)`
1085 = 155r
⇒ r = `(1085)/(155)` = 7
∴ Rate 7% p.a.
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संबंधित प्रश्न
A page from a savings bank account passbook is given below:
| Date | Particulars | Amount withdrawn (Rs.) |
Amount Deposited (Rs.) |
Balance (Rs.) |
| Jan 7, 2016 | B/F | 3,000.00 | ||
| Jan 10, 2016 | By Cheque | 2600.00 | 5600.00 | |
| Feb 8, 2016 | To Self | 1500.00 | 4100.00 | |
| Apr 6, 2016 | By Cheque | 2100.00 | 2000.00 | |
| May 4, 2016 | By Cash | 6500.00 | 8500.00 | |
| May 27, 2016 | By Cheque | 1500.00 | 10000.00 |
1) Calculate the interest for the 6 months from January to June 2016, at 6% per annum.
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Mr. Britto deposits a certain sum of money each month in a Recurring Deposit Account of a bank. It the rate of interest is of 8% per annum and Mr. Britto gets Rs. 8,088 from the bank after 3 years, find the value of his monthly instalment.
Given below are the entries in a Saving Bank A/c passbook.
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| 01.01.03 01.02.03 12.02.03 05.04.03 15.04.03 09.05.03 04.06.03 |
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| Feb. 3, 1981 | By cash | - | 500·00 | 500·00 |
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| March 1 | By salary | - | 2,350·00 | 3,350·00 |
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