Q. What is the next number of the following sequence

20, 19, 17, x , 10, 5

Options:
A. 12
B. 13
C. 14
D. 15

• it was sooooooo easy...dont make it too difficult...look at d series...
  20,19,17,_,10,5
  20-1=19
  19-2=17
  17-3=14
  14-4=10
  10-5=5
  
  so answer is 14...:)
• 10 years agoHelpfull: Yes(1) No(0)
• 14........
  as ((20+17)+1)/2=19,,,,,,same as for...((19+x)+1)/2=17
  v get....x=14....
• 10 years agoHelpfull: Yes(0) No(1)
• ans 14
  20-1=19
  19-2=17
  17-3=14
  14-4=10
  10-5=5
• 10 years agoHelpfull: Yes(0) No(0)
• 20-1=19
  19-2=17
  17-3=14
  14-4=10
  10-5=5
  see from starting -1 and next -2,-3,-4,-5
  so the ans for x is 14
  
• 10 years agoHelpfull: Yes(0) No(0)
• 20-1=19
  19-2=17
  17-3=14
  14-4=10
  10-5=5
• 9 years agoHelpfull: Yes(0) No(0)
• 14
  The difference b/w nos is 1,2,3,4,5
• 4 years agoHelpfull: Yes(0) No(0)