हिंदी

Mr. R.K. Nair gets Rs 6,455 at the end of one year at the rate of 14% per annum in a recurring deposit account. Find the monthly installment.

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प्रश्न

Mr. R.K. Nair gets Rs 6,455 at the end of one year at the rate of 14% per annum in a recurring deposit account. Find the monthly installment.

योग
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उत्तर

Let monthly instalment is Rs P

here n = 1 year = 12 months
n = 12

∵ M.V. = `("n"("n" + 1))/(2 xx 12) xx ("P" xx "R")/(100) + "P"."n"`

⇒ ₹ 6455 = `(12(12 + 1))/(2 xx 12) xx ("P" xx 14)/(100) + "P".12`

₹ 6455 = `(13 xx "P" xx 7)/(100) + "P".12`

⇒ ₹ 6455 = `(91"P" + 1200"P")/(100)`

⇒ ₹ 645500 = 1291P

⇒ P = `(645500)/(1291)`

= ₹ 500.

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अध्याय 2: Banking - Exercise 2A [पृष्ठ २३]

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नूतन Mathematics [English] Class 10 ICSE
अध्याय 2 Banking
Exercise 2A | Q 4. | पृष्ठ २३
नूतन Mathematics [English] Class 10 ICSE
अध्याय 2 Banking
Chapter Test | Q 1. | पृष्ठ २५

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