Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • School
  • The sum of integers from 13 to 123 which are divisible by 3 is​

The sum of integers from 13 to 123 which are divisible by 3 is​

Answers (1)

S = 15 + 18 + ....+ 123

123 = 15 + (n-1) 3

108/3 =n-1

n = 36+1

n=37

S = 37/2{2x15 + 36x3}

S = 37{15+54}

S = 37x69

S = 2553

Posted by

Ravindra Pindel

View full answer

Similar Questions

Latest Question