1,5,6,25,26,30,31,125,126,130,131,150,151... what is value of 35 term?

• 1st term=1
  2nd=1st*5
  3rd=2nd+1
  4th=2nd*5
  similarly,
  5th=4th+1
  now calculate and 17th Term=8th*5+1=125*5+1=626
  So 35th=17th*5+1=3131
  Ans is 3131
• 10 years agoHelpfull: Yes(33) No(0)
• assume a contant no. 5. if we multiply it with first no. of the series, we get second no., if we multiply it with 2nd no., we get 4th no., if we multiply it with 4th no. we get 8th no. ....like wise if we multiply it with 17th no., we will get 34th no. ...and 35th term will b 1+34th term i.e 3131
  in the given series we already have total 13 numbers, the series will be- 1,5,6,25,26,30,31,125,126,130,131,150,151,155,156,625,626,630,631,650,651,655,656,750,751,755,756,775,756,780,781,3125,3126,3130,3131
  so final answer is 3131
• 10 years agoHelpfull: Yes(7) No(2)