115 100 86 74 65 60

• 115-100=-15
  100-86=-14
  86-74=-12
  74-65=-9
  65-60=-5
  -15+1=-14
  -14+2+-12
  -12+3=-9
  -9+4=-5
  -5+5=0
  ans is 60+0=60
• 11 years agoHelpfull: Yes(74) No(4)
• 115 100 86 74 65 60
  - 15 14 12 9 5
  - 1 2 3 4
  so next difference should be 5 ... so
  
  115 100 86 74 65 60 70
  15 14 12 9 5 10
  1 2 3 4 5
• 11 years agoHelpfull: Yes(23) No(19)
• 115-100=15
  100-86=14
  86-74=12
  74-65=9
  65-60=5
  15-14=1
  14-12=2
  12-3=9
  9-4=5
  5-5=0
  60-0=60
  ans is 60
  
• 11 years agoHelpfull: Yes(16) No(5)
• Difference is
  15,14,12,9,5
  
  Again difference is
  1,2,3,4,...5
  5-5=0
  60+0=60 ans
• 11 years agoHelpfull: Yes(4) No(3)
• 115 100 86 74 65 60
  - 15 14 12 9 5
  - 1 2 3 4
  so next difference should be 5 ... so
  
  115 100 86 74 65 60 50
  15 14 12 9 5 10
  1 2 3 4 5 THEN IT WILL APPLIES FOR 50..HOW IT MEANS 60-50=10...IF WE GO FOR 70 THEN 60-70=-10..ITS DUMP ERROR..CHECH IT
• 11 years agoHelpfull: Yes(4) No(4)
• 115 -100=15 ,100-86=14,86-74=12,74-65=9,65-60=5,60
  
  15-14=1
  14-12=2
  12-9=3
  9-5=4
  now, 5-5=0
  ans is 60
• 9 years agoHelpfull: Yes(2) No(0)
• the ans is 55.
• 10 years agoHelpfull: Yes(1) No(4)