Find the next series

125,80,45,20,_
a)10 b)8 c)12 d)5

• 125=(5)square*5
  80=(4)square*5
  45=(3)square*5
  20=(2)square*5
  
  So next series is (1)square*5=5
  Therefore 5 is the correct answer.Hare Krishna
• 8 years agoHelpfull: Yes(9) No(0)
• 125-80=45
  80-45=35
  45-20=25
  20-5=15
  so ans is 5
• 8 years agoHelpfull: Yes(2) No(1)
• option d)5
• 8 years agoHelpfull: Yes(0) No(0)
• 125----------------------(5)square *5
  80------------------------(4)square*5
  45-------------------------(3)square*5
  20--------------------------(2)square*5
  5---------------------------(1)square*5
  hence option d)5 is correct
• 8 years agoHelpfull: Yes(0) No(0)
• Ans) D
  125-45=80
  80-35=45
  45-25=20
  20-15=5
• 8 years agoHelpfull: Yes(0) No(0)
• 125-80=45
  80-45=35
  45-20=25
  20-5=15
  
  so ans:d)5
  
• 8 years agoHelpfull: Yes(0) No(0)
• d)
  125-80=45
  80-45=35
  45-20=25
  20-5=15
• 8 years agoHelpfull: Yes(0) No(0)
• difference is decreasing by 10 i.e 35,25,15
  so ans is 5
• 7 years agoHelpfull: Yes(0) No(0)
• 125 - 80 = 45
  80 - 45 = 35
  45 - 20 = 25
  20 -5 = 15
  
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• There difference of 1O
  Option d-5
• 4 years agoHelpfull: Yes(0) No(0)