# A sum of Rs.1000 is invested at 8% simple interest per annum. Calculate the interest at the end of 1, 2, 3, ……. Years. If the sequences of interests an AP? Find the interest at the end of 30 years.

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by dita

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by dita

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The Brainliest Answer!

principal=1000

rate of interest=8%

number of years=1 year

SI=Pnr/100=1000x1x8/100=rs.80

when n=2 years,SI=1000x2x8/100=rs.160

when n=3years,SI=1000x3x8/100=rs.240

the sequence is

80,160,240,..........

this is in AP as a,first term=80,d,common difference=80

interest at the end of 30 years,t30=a+(n-1)d

=80+(30-1)80

=80+29(80)

=80+2320

=2400