How many terms are there in the series :
201,208,215,…….,369?

(a) 23
(b) 24
(c) 25
(d) 26

• a=201(first term),d=7(common difference b/w terms),total=369
  A.P series formula:-
  a+(n-1)d=369
  201+(n-1)7=369
  (n-1)=369-201/7
  n-1=24
  n=25
• 10 years agoHelpfull: Yes(0) No(0)
• Here a = 201, tn = 369 and d = 7
  Use tn = a + (n - 1)d to find n.
  After substituting the given values we get n = 25
  
• 9 years agoHelpfull: Yes(0) No(0)
• option (d)= 26
  difference b/w numbers is 7
  ie. 369-215= 154/7 = 22+4 = 26.
• 8 years agoHelpfull: Yes(0) No(1)