the compound interest on a certain amount for 2 years at the rate of 8% p.a ins rs.312. what will be the simple interest on the same amount and at the same rate and same time ?
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Answer:
given ,t=2 years,r=8%,c.i=312,
as we know, the formula C.I.=Amount-Principal
then
312=P(1+R/100)^2-P
312=P(1+8/100)^2-P
312=P(108/100)^2-P
312=P(11664/10000)-P
312+P(11664/10000-1)
312=P(1164/10000)
312*10000=1164P
3120000/1164=P
P=1875
S.I.=P*R*T/100
1875*8*2/100
300rs ans
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refer to the attachment
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