1.

Anil opened a recurring deposit account with Axis Bank for n year .He deposited Rs 800 in every month.The bank paid him Rs 10784n on maturity The rate of interest was 8% per annum .Find n

Answer»

3
2.5
2
3.5

Solution :Time period = 12N months
`SI(in RS) =800((12n)(12n+1))/(2)(1/12)(8/100)`
`=32n (12n+1)
Amount paid by THEBANK (in Rs)
=(12n)(800)+32n(12n+1)
=960n+32n(12n+1)
Given ,9600 n + 32n (12n+1)
`RARR 32n(12n+1)=10.784n=1184n`
`rarr 12n+1=37rarr n=3`


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