Q. What is the next number of the following sequence 5,50,10,40,15,30,20,20,....

• there are two series with alternate terms
  5,10,15,20,25
  50,40,30,20,10
  so next two no.
  25,10
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• 25 there are 2 series involved alternatively...
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• 25,10
  1st series 5,10,15,20..
  2nd series 50,40,30,20...
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• Ans: 25
  Two Series Are involved in this at the alternative positions
  1 is multiple of 5 and the other one is step decrement of 10
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• This consists of tow sequences i.e 5,10,15,20,25 and 50,40,30,20,10 and so on
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• 25..
  alternate numbers are in a series
  
  5 10 15 20 25 (+5)
  50 40 30 20(-10)
• 10 years agoHelpfull: Yes(0) No(0)