what will be the next term in the following series?

a) 3 , 3, 4, 8, 10, 36, ?

b) 25, 26, 25, 26, 27, 28, ?

c) 18, 20, 22, 20, 28, 20, ?

d) 7, 6, 8, 5, 3, 7, ?

Please give the solution with explanation

• a) 3 , 3, 4, 8, 10, 36, ?
  consider series in two parts
  3,4,10,..
  3,8,36...
  In 1st part
  3*1+1=4,4*2+2=10,10*3+3=33,.
  in 2nd part
  3*2+2=8,8*4+4=36,36*6+6=222,...
  next part of series should be
  3,3,4,8,10,36,33,222
• 11 years agoHelpfull: Yes(4) No(0)
• c) the even term is always 20 and the odd terms series is 18,22,28 next will be 36
  so series is 18,20,22,20,28,20,36,20,46,20....
• 11 years agoHelpfull: Yes(1) No(1)
• b) i think we hv to divide this series in two parts.each part containing two digits
  25,26,27,28
  25,26...
  both in a.p
  first series become 25,26,27,28,29,30
  nd 2nd become 25,26,27,28,29,30
  so ans is 25,26,25,26,27,28,27,28,29,30,29,30
• 11 years agoHelpfull: Yes(1) No(1)