Sum of number between 200 and 300 which is multiple of 3?

• multiple of 3 between 200 and 300
  201,204,207,......297
  hear a= 201, d=3
  Last term= a+ (n-1)d = 297
  201+ (n-1) 3= 297 => n=33
  sum of numbers(201+204+...+297)= (n(a+last term))/2 = 33(201+297)/2 = 8217
  so my answer is 8217
• 11 years agoHelpfull: Yes(32) No(3)
• last term= a+(n-1)d => 300=201+(n-1)3 => n=34
  s= 34/2(201+300)= 8517
• 11 years agoHelpfull: Yes(29) No(7)
• n=34
  s=n/2(a+l)
  =8517
• 11 years agoHelpfull: Yes(6) No(3)
• in the ques it is given that between 200 to 300 so i think that the correct answer is 8217
  which follows the procedure n=33 and sum =8217
• 10 years agoHelpfull: Yes(6) No(0)
• ans is 8217
  becoz we have to take no. bw 200 and 300
  therefore 297=201+(n-1)3
  n=33.
  put n=33 in n/2(201+297)=8217
• 11 years agoHelpfull: Yes(3) No(0)
• series starts like 201,204,207,210........300...
  =>n=40& common diffrnc,d=3
  sum of terms =n/2(2a+(n-1)d))
  and:10380
• 11 years agoHelpfull: Yes(0) No(11)
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• 10 years agoHelpfull: Yes(0) No(3)
• 219...
  n+u+m+b+e+r=14+21+13+2+5+18=73
  73*3=219.
• 10 years agoHelpfull: Yes(0) No(3)
• ans is 24750.......st term 201,last term 299 sum=n/2(1st +lst)
  so sum = 99/2(201+299) = 24750 which is multiple of 3
• 10 years agoHelpfull: Yes(0) No(3)