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Th sum of the first 30 terms of an A.P I...

Th sum of the first 30 terms of an A.P I 1920. If the fourth term is 18, find its `11^(th)` term.

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The sum of the first 30 terms of an A.P. is 1920. if the fourth term is 18, find its 11^(th) term.

The sum of the first 30 terms of an A.P. is 1920. if the fourth term is 18, find its 11^(th) term.

If the sum of the first 14 terms of an AP is 1050 and its first term is 10, find the 20^(th) term.

If the sum of first 14 terms of an A.P. is 1050 and its first term is 10, find the 20^(th) term.

Sum of the first 14 terms of an AP is 1505 and its first term is 10. Find is 25 th term.

If the 2^(nd) term of an A.P. is 8 and the 5 ^(th) term is 17, find its 19^(th) term.

The sum of the first six terms of an A.P. is 42. The ratio of the 10th term to the 30th term of A.P. is 1/3 Find the 40th term of the A.P.:

The sum of 5th and 9th terms of an A.P. is 30. If its 25th term is three times its 8th term, find the A.P.

Find the sum of first 45 terms of an A.P. whose 8^(th) term is 41 and 13^(th) term is 61 .

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AGRAWAL PUBLICATION-ARITHMETIC PROGRESSIONS-EXAMPLE
  1. Find a, b, and c such that the following numbers in AP: a,7, b, 23, c.

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  2. Determin the AP whose 5^(th) term is 19 and the difference of 8^(th) t...

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  3. Th sum of the first 30 terms of an A.P I 1920. If the fourth term is 1...

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  4. Which term of the A.P 20, 19 1/4 , 18 1/4, 17 1/4, ….. is the first ne...

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  5. Find the middle term of the A.P 7,13,19,……,247.

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  6. Split207 into three parts uch that these are in AP and the product of ...

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  7. How many numbers lie between 10 and 300, which when divided by 4 leave...

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  8. Find the sum of the two middle most terms of the AP: -4/3, -1,-2/3, …....

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  9. Show that the sum of all terms of an A.P whose first term is a, the se...

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  10. The first term of an ap is -5 and the last term is 45. If the sum of t...

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  11. If Sndenotes the sum of first n terms of an AP, prove that S(12) = ...

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  12. If the sum of the first 6 terms of an AP is 36 and that of the fist 16...

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  13. The sum of the first n terms of an AP whose first term is 8 and the co...

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  14. If m^(th) term of an A.P. is 1/n and n^(th) term is 1/m. Find the sum ...

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  15. Find the sum of n terms of the series (4 -1/n) + (4 - 2/n) + (4- 3/n) ...

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  16. For what value of n are the n^(th) terms of two A.P's 63,65,67, ….. An...

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  17. Find the sum of the first 40 positive integers which give a remainder ...

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  18. Divide 56 in four parts in A.P. such that the ratio of the product of ...

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  19. If the sum of the first 7 terms of an A.P. is 49 and that of its first...

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  20. If the sum of first p terms of an A.P. is equal to the sum of the firs...

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