मराठी

Mrs. Geeta deposited Rs. 350 per month in a bank for 1 year and 3 months under the Recurring Deposit Scheme. If the maturity value of her deposits is Rs. 5,565; find the rate of interest per annum

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प्रश्न

Mrs. Geeta deposited Rs. 350 per month in a bank for 1 year and 3 months under the Recurring Deposit Scheme. If the maturity value of her deposits is Rs. 5,565; find the rate of interest per annum.

बेरीज
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उत्तर

Installment per month (P) = Rs. 350

Number of months (n) = 15

Let rate of interest (r) = r% p.a.

∴ `S.I. = P xx (n(n + 1))/(2 xx 12) xx r/100`

= `350 xx (15(15 + 1))/(2 xx 12) xx r/100`

= `350 xx 240/24 xx r/100`

= Rs. (35)r

Maturity value = Rs. (350 × 15) + Rs. (35)r

Given maturity value = Rs. 5,565

Then Rs. (350 × 15) + Rs. (35)r = Rs. 5,565

`=>` 35r = Rs. 5,565 – Rs. 5,250

`=>` r = `315/35` = 9%

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पाठ 2: Banking (Recurring Deposit Account) - Exercise 2 (A) [पृष्ठ २४]

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सेलिना Concise Mathematics [English] Class 10 ICSE
पाठ 2 Banking (Recurring Deposit Account)
Exercise 2 (A) | Q 8. | पृष्ठ २४

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