The c.i on a sum at a certain rate of interest for the second and third year were 17280 and 20736 rs respectively. Find the sum..

• THE DIFFERENCE BETWEEN THE TWO C.I WILL GIVE THE INC IN INTEREST BTWEEN THE 2 YRS
  THAT IS,20736-17280=3456.
  RATE=(17280/3456)*100=20%
  LET THE SUM BE X,
  17280=X(1+20/100)^2
  X=12000
• 11 years agoHelpfull: Yes(14) No(3)
• 12,000 will be the sum at CI of 20% p.a.
• 11 years agoHelpfull: Yes(2) No(2)
• from where did u get these questions???TargerTcs 2014
• 11 years agoHelpfull: Yes(2) No(0)
• dude those values are not C.I ....and
  Rate=[(A2/A1)^1/(t2-t1)-1]*100
  so rate will be 20% and sum 12000
• 11 years agoHelpfull: Yes(1) No(1)
• Principal Amount = 12000
• 11 years agoHelpfull: Yes(1) No(2)
• THE DIFFERENCE BETWEEN THE TWO amount WILL GIVE THE c.i BTWEEN THE 2 YRS
  THAT IS,20736-17280=3456.
  RATE=(17280/3456)*100=20%
  LET THE SUM BE X,
  17280=X(1+20/100)^2
  X=12000
• 11 years agoHelpfull: Yes(1) No(1)
• The Sum Will Be 72000 Not 12000, Sine 17280 & 20736 are CI(Compound Interest) Not The (Sum+CI)..
• 11 years agoHelpfull: Yes(1) No(0)
• the answer will be 12000 rs. at 20% pcpa
• 11 years agoHelpfull: Yes(0) No(3)
• can any one explain it clearly
• 11 years agoHelpfull: Yes(0) No(1)
• 70000,ratio of ci
• 11 years agoHelpfull: Yes(0) No(2)