At what rate of simple interest per annum an amount will be doubled in 10 years?

• actual amount=p
  now it is doubled amount=2p
  S.I=2p-p=p
  S.I=ptr/100
  
  r=SI*100/pt=p*100/p*10=10
  r=10%
• 10 years agoHelpfull: Yes(16) No(0)
• 10%
  If Principal=p, Rate%=r
  For amount to double in 10 years, (p*r*10)/100 =p, r=10
• 10 years agoHelpfull: Yes(6) No(5)
• let the sum be 100, time=10, rate=R.
  given that the amount is doubled after 10 years which implies that
  S.I= (P*R*T)/100
  => 200=(100*R*10)/100
  => R=20%
• 10 years agoHelpfull: Yes(6) No(16)
• 10%.
  rate = ( interest*100)/(principal *time) =(x*100)/(x*10)=10 %
• 10 years agoHelpfull: Yes(4) No(3)
• Let principal amount be rs x.
  amount=rs 2x
  simple interest=2x-x=rs x
  x=(x*10*rate)/100
  rate=100/10=10%
• 10 years agoHelpfull: Yes(2) No(0)
• 2x=(x*R*10)/100
  which gives R=20
  SO RATE BE 20%
• 10 years agoHelpfull: Yes(0) No(2)
• S.I=p*r*t/100
  let principal be rs.100 since amount doubles in 10 yrs amount will be rs.200 ,but S.I is rs 100
  so,100=100*r*10/100 and ans is 10%
• 10 years agoHelpfull: Yes(0) No(0)
• 10%,100=100*r*10/100=>r=10
• 10 years agoHelpfull: Yes(0) No(0)