Dhoni is now two fith of his older brother's age and two years from now he will be half of his older brother's age.
Two years ago, dhoni was only one-fourth the age of his older brother age at that time.

How old is dhoni now ?

• 4 years
  If age of Dhoni=x & Older brother=y
  (i) x=(2/5)y ,5x=2y ---(i)
  (ii)x+2=(1/2)(y+2),2x-y=-2 ---(ii)
  (iii)x-2=(1/4)(y-2),4x-y=6 ---(iii)
  Solving any two equations, x=4, y=10
• 10 years agoHelpfull: Yes(3) No(0)
• Present age of dhoni's brother= b
  present age of Dhoni= D= 2b/5-------(i)
  Two years ago....
  D-2=(b-2)/4------(ii)
  
  Now put D's value in equn(ii)
  
  2b b-2
  ____ - 2 = _______
  5 4
  
  After solving b=10 and D=2*10/5= 4
  
  SO dhoni's present age is 4 years
• 8 years agoHelpfull: Yes(0) No(0)