12,18,36,48,60,78,__,__

• 84 and 108
  
  explanation:
  this series is mixture of 2 series...
  they are,
  12,36,60...... (common thing : common difference is 24)
  18,48,78.... (common thing : common difference is 30)
  
  so,
  next element of the two series are 84 and 108 respectively.
  QED..:)
• 11 years agoHelpfull: Yes(3) No(0)
• divide each by 6, gives
  2,3,6,8,10,13
  which is divided into two series
  alternative nos make two series
  2,6,10 & 3,8,13
  so the two next two no's are (10+4), (13+5) multiplied by 6
  therefore ans 84,108
  
  
• 11 years agoHelpfull: Yes(1) No(0)
• 84,108
  there are two series in the given series
  12,36,60 n second one 18,48,78
• 11 years agoHelpfull: Yes(0) No(0)
• answr : 84,108. bcze
  
  12,36,60,__ ? diffedence is =24. so next first number is 84.
  16,48,78,__ ? differnce is =30. so next scnd numbr is 108.
• 11 years agoHelpfull: Yes(0) No(0)
• 84 and 108
  reason:
  its a combination of 2 series
  12, 36, 60(each being a multiple of 6 with common difference 24)
  18, 48, 78(multiples of 6 with common difference 30)
  (60+24)&(78+30)
  i.e., 84 & 108
• 11 years agoHelpfull: Yes(0) No(0)
• this question has two common differences are there one is
  12,36,60...common difference is 24 so after that 84,and one more series is 18,48,78 common difference is 30 so after that 108
  the solution is 84,108
• 11 years agoHelpfull: Yes(0) No(0)