Find the middle term of A.P 6,13,20,………..216
12. The 6th term of an A.P is -10 and its 10th term is -26. Determine the 15th term of an A.P
13. The 8th term of an A.P is 0 prove that its 38th term is triple its 18th term.
14. The sum of three numbers in A.P is 21 and their product is 231 find the numbers.
15. Find the sum of 25th term of an AP which nth term is given by tn=(7-3n)
16. Find the sum of all two digit odd positive numbers
17. Find the sum of three digits numbers which are divisible by 11
18. The sum of first 6 term of A.P is 42. The ratio its 10th term to 38th term is 1:3. Calculate the first and 13th term of
the A.P
19. How many term of the A.P 17, 15, 13, 11…… must be added to get the sum 72? Explain the double answer.
20. The sum of n, 2n, 3n term of an A.P are S1, S2, and S3 respectively. if anyone answer this all questions I will u has brainliest
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