Complete the missing part of the series: C3DF, _____, CDF5, C6DF, CD7F
A)C4DF B)4CDF C)CDF4 D)CD4F

• 3 is after c ,5 is after F,6 is after c,7 is after D so CD4F
• 4 years agoHelpfull: Yes(2) No(1)
• C is common for every word,so fix C as 1st letter.
  
  Number bit is change the position in every in word with increse in number.
  Ex:C6DF to CD7F
  6 to 7 in next position.
  consider,
  C3DF in next word 3 should be 4 and its position is 3rd bit.
  1st bit C is fix ,2nd bit is D, 3rd is 4,4th is F
  So,
  ANSWER IS="CD4F".
• 3 years agoHelpfull: Yes(1) No(0)
• option (A)
• 2 years agoHelpfull: Yes(0) No(0)
• d)cd4f first letter c is common numbers are in order of 2nd 3rd 4th position last letter is f so by hit and trail option 4
• 2 years agoHelpfull: Yes(0) No(0)