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a certain sum doubles in 12yrs if invested in simple interes.what is the rate of interest
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- formula is A=P(1+(r*t/100))
from ques.
Let A=2x & P=x
2x=x(1+(12*r/100))
rate=(100/12)%
or r=8.33% - 12 years agoHelpfull: Yes(24) No(1)
- shot cut method for double
inerest=100/12=8.33333
similarly u can find yrs if rate is givn.. - 12 years agoHelpfull: Yes(8) No(1)
- interest=money*rate*time/100
money is doubled means
money=interest=P time =12 year
1=rate*time/100
rate=100/12=8.33%pa - 12 years agoHelpfull: Yes(3) No(0)
- in 12 yr interest is 100
so in 1yr interest is=100/12=8.33 % - 12 years agoHelpfull: Yes(3) No(0)
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