Answers

2014-08-30T21:05:28+05:30
55 + x =  4 (7 + x)
55 + x = 28 + 4x
3x = 27
x = 9
After 9 more years Tony will be 16 and Mr Jacob will be 64.
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55+x= 4(7+x)
after 9 years tony will be 16 and his father will be 64
2014-09-01T08:43:40+05:30
Let the no of years be X
  present age of mr jacob=55
  present age of tony =7
ATQ,
   55+X=4(7+X)
⇒55+X=28+4X
⇒3X=27
⇒X=9
so the required number of years is 9.

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