If a publication occurs every seven years and sum of years is 13524 then find the first year

• @KUNDAN KUMAR Can you explain why are you adding up to only 7 terms????
• 10 years agoHelpfull: Yes(26) No(2)
• Let the years of publication be x
  then, next year of publication will be x+7, x+14, x+21, x+28, x+35, x+42
  adding all we get,
  7x+147=13524
  Hence year of publication is 1911
• 10 years agoHelpfull: Yes(25) No(9)
• actually the question is incomplete !!!
• 10 years agoHelpfull: Yes(8) No(3)
• can't solve with out option .
• 10 years agoHelpfull: Yes(2) No(2)
• let the publication yr be x
  then, acc to qestn
  (x+7)+(x+14)+(x+21)+(x+28)+(x+35)+(x+42)+(x+49)= 7x+147
  => 7x+196=13524
  => x=1904
• 10 years agoHelpfull: Yes(2) No(3)
• 13524= 7*(x+6)/2
  x= 1929
• 10 years agoHelpfull: Yes(0) No(18)
• sum = 13524
  d=7,n=7
  sum=n/2[2a+(n-1)*d)
  13524=7/2[2*a+6*7]
  ans =1911
• 8 years agoHelpfull: Yes(0) No(1)