What is the sum of 18 terms of the A.P. which has 7 times of its 7th term equal to 11 times of the 11th term? Share with your friends Share 0 Anand Kumar Pandey answered this Hence, sum of 18 term of an A.P. is -153d 0 View Full Answer Chaudhary Adarsh Sangwan answered this Please find this answer 1
Hence, sum of 18 term of an A.P. is -153d