if the sum of money at simple interest doubles in 12 years ,it will become 5 times in

• 48 years
  
  To double the sum x, interest=x, so x*r*12/100= x, r=100/12=25/3
  Hence with the same rate in n years for sum to become 5 times, interest=4x
  => x*(25/3)*n/100= 4x
  => n= 4*100*3/25= 48
• 7 years agoHelpfull: Yes(1) No(0)