Ask a New Question

Asked by Sania

The fourth term of an AP is 10 and eleventh term of it exceeds three times the fourth term by 1. Find the sum of first 20 terms.
8 years ago

Answers

Answered by Steve
find a and d using what they have told you:

a+3d = 10
a+10d = 3(a+3d)+1

Then just evaluate

S20 = 20/2 (2a+19d)
8 years ago
There are no AI answers yet. The ability to request AI answers is coming soon!

Submit Your Answer


We prioritize human answers over AI answers.

If you are human, and you can answer this question, please submit your answer.

Related Questions

The fourth term of A P is 37 and the 6th term is 12 more than the fourth term.find the first and the... second term is 8 and fourth term is 14.find the first term and the common difference. the fourth term of an ap is 11 And the eight term exceeds twice the fourth term by 5.find the ap and... The third,fourth and eight term of A.P form first three consecutive term of G.P.if the sum of the fi... If the fourth term of GP is 9 and the sixth term is 81. Find: 1) common ratio. 2) first term The fourth term of a GP is 2 and the a sixth term is 8. Find the common ratio and first term? the third fourth and fifth terms of a geometric progression are t+4,t+10 and t+20 respectively .dete... The fourth term of an AP is 9 and the sum of the first ten terms is 60. Find the first term and the... Given that the fourth term is 64 and the sum to infinity is 625, what is the value of u1 and the val...
Submit Your Answer

Question

The fourth term of an AP is 10 and eleventh term of it exceeds three times the fourth term by 1. Find the sum of first 20 terms.

Ask a New Question
Archives Contact Us Privacy Policy Terms of Use