What is Arun's present age?

I.

Five years ago, Arun's age was double that of his son's age at that time.

II.

Present ages of Arun and his son are in the ratio of 11 : 6 respectively.

III.

Five years hence, the respective ratio of Arun's age and his son's age will become 12 : 7.

A.
Only I and II
B.
Only II and III
C.
Only I and III
D.
Any two of the three
E.
None of these

• d option is true
• 13 years agoHelpfull: Yes(0) No(0)
• option D is correct.. bcz there is needed 2 equation that can be derived from any two from given 3 statement....
• 13 years agoHelpfull: Yes(0) No(0)
• here given that present age of arun and his son are in ratio=11:6
  so Let arun's present age=11x
  his son=6x
  according (1)
  five years ago arun'sage=11x-5
  and his son=6x-5
  therfore
  11x-5=(6x-5)*2
  11x-5=12x-10
  x=5
  then arun's age=55
  his son=30
  now it is implies tha this question can be solve by taking any
  two
  condition
  Answer D
• 13 years agoHelpfull: Yes(0) No(0)