An amount doubles itself at the end of 8 years with a certain rate of simple interest. What will be the total simple interest on ` 8000 at that rate at the end of four years?
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i =p*r*t
therefore if amount is doubling itself it means that the principal becomes equal yo interest accumulated over the period
so i=p
p=prt
1=rt
1=r*8
r=1/8
therefore i=8000*1/8*4
4000
so amount at the end of 4 years is principal + interest
=8000+4000
=12000
therefore if amount is doubling itself it means that the principal becomes equal yo interest accumulated over the period
so i=p
p=prt
1=rt
1=r*8
r=1/8
therefore i=8000*1/8*4
4000
so amount at the end of 4 years is principal + interest
=8000+4000
=12000
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