the ratio of the 11th term to the 8th term of an AP is 2:3. find the ratio of the 5th term to the 21st term also the ratio of the sum of the first five terms tothe sum of the first 21 terms

  • 1

well do you know that answer..........?

  • 0

i think its 4 : 9 if the answer is correct agree with this comment by clicking on the thumbs up logo and then i ll tell u the procedure.......

  • 1
What are you looking for?