If a certain money becomes twice in 5 years then the Rs300 will become 2400 at the same rate in how many years?

• 15 years
  
  As
  
  300 get double after 5 years becomes 600
  600 get double after 5 years becomes 1200
  1200 get double after 5 years becomes 2400
  
• 13 years agoHelpfull: Yes(3) No(0)
• P(1+R/100)^5=2P
  SO (1+R/100)^5=2-----eq(1)
  300*(1+R/100)^n=2400
  --> (1+R/100)^n=8=2^3
  from eq(1) (1+R/100)^n=((1+R/100)^5)^3
  so n=15 year
• 13 years agoHelpfull: Yes(2) No(0)