find the next number in the series
1)5,50,10,40,15,30,20,20,?
2)7,19,43,91,,187,?

• 2)7+12=19+24=43+48=91+96=187+192=379
  add 12,24,48,96,192 to the consecutive numbers....
  
• 10 years agoHelpfull: Yes(31) No(0)
• 1)ans->25
  solution:its an two alternate series 1).5,10,15,20,and next 25..2)50,40,30,20,and next 10.....so final :5,50,10,40,15,30,20,20,25,10....
  
• 10 years agoHelpfull: Yes(22) No(0)
• 2) 7,19,43,91,187...?
  7*2=14+5=19
  19*2=38+5+43
  43*2=86+5=91
  91*2=182+5=187
  187*2=374+5=379
• 10 years agoHelpfull: Yes(18) No(0)
• 1) 25,10
  2) 379
• 10 years agoHelpfull: Yes(5) No(1)
• 1)ans:25
  2)ans:379
• 10 years agoHelpfull: Yes(3) No(0)
• a)25
  b)379
• 10 years agoHelpfull: Yes(2) No(0)
• it is combination of two series.. first series => 5+5=10, 10+5=15 15+5=20
  second series => 50-10=40 40-10=30 30-10=20
  so ans will be=> 20+5= '25' (ans)
• 10 years agoHelpfull: Yes(2) No(0)
• 1st one is25
  2nd one is 379
• 10 years agoHelpfull: Yes(2) No(0)
• 1) ans.is 25
  2) ans. is 379
  
• 10 years agoHelpfull: Yes(2) No(0)
• 5,15,20
  50,40,30,20,10
  ans is 10
• 10 years agoHelpfull: Yes(2) No(0)
• 1, answer-25
• 10 years agoHelpfull: Yes(1) No(0)
• 1) (5,50),(10,40),)(15,30),(20,20)
  observe the series first 5 increase second no 10 decrease so next is (25,15).
  
  2)7*2=14+5=19,19*2=38+5=43,43*2=86+5=91,91*2=182+5=187,187*2=374+5=379.
  ans 379.
• 10 years agoHelpfull: Yes(1) No(2)
• 1. 25
  2. 285
• 10 years agoHelpfull: Yes(1) No(1)
• 1)25
  2)159
• 10 years agoHelpfull: Yes(0) No(3)