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What Should Be Minimum Monthly Deposit in a Recurring Deposit for 3 Years to Get Rs 20,220 on Maturity After 3 Years at an Interest Rate of 8% Pa. - Mathematics

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प्रश्न

What should be minimum monthly deposit in a recurring deposit for 3 years to get Rs 20,220 on maturity after 3 years at an interest rate of 8% pa.

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उत्तर

Given that Recurring deposit per month = P, Period= 3 years = 36Months, R=8°/o, Maturity amount =Rs 20,220

Money deposited= Monthly value × No of Months = P × 36= Rs 36 P  

Total Principal for 1 Month= P x (36)(36+1)/2= Rs 666P 

Interest= Principal for One month x RI ( 12 x 100) ..... ( 1)

Putting Values in ( 1 ), we get 

20220 - 36P= (666P x 8) / ( 12 x 100) 

⇒ 20220-36P=4.44P 

⇒ P = 20220/40.44 = Rs 500 

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अध्याय 3: Banking - Exercise 3.2 [पृष्ठ ५१]

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फ्रैंक Mathematics - Part 2 [English] Class 10 ICSE
अध्याय 3 Banking
Exercise 3.2 | Q 9 | पृष्ठ ५१

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