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Jack is now twice as old as Femina, who is two years older than Suresh. Four years ago, Jack was four times as old as Suresh. How old is Jack now?
  • a)
    18
  • b)
    12
  • c)
    16
  • d)
    20
  • e)
    24
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Jack is now twice as old as Femina, who is two years older than Suresh...
Let the age of SURESH = X
age of FEMINA = X + 2
age of JACK = 2 ( X + 2 ) = 2X +4

four years ago,
JACK age =( 2X +4 )- 4 = 2X
SURESH age = X - 4

A/Q -
2X = 4 ( X - 4 )
=> X = 8
JACK present age = 2 (X +2)= 20 year . option( D)
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Community Answer
Jack is now twice as old as Femina, who is two years older than Suresh...
j = 2f – (i)
f = s+2 – (ii)
four years ago
j - 4 = 4(s-4)
putting (ii) in (iii)
we get j - 4 = 4(f-2-4)
sub (i) in above equation we get
j - 4 = 4(j/2-6) ⇒ j = 20
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Jack is now twice as old as Femina, who is two years older than Suresh. Four years ago, Jack was four times as old as Suresh. How old is Jack now?a)18b)12c)16d)20e)24Correct answer is option 'D'. Can you explain this answer?
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