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In an AP :- given a = 7, a13 = 35 find...

In an AP :- given a = 7, `a_13` = 35 find d and `S_13`.

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In an AP :- given a_12 = 37, d = 3, find a and S_12 .

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In an AP :- given a_3 = 15, S_10 =125 find d and a_10 .

In an AP :- given d = 5, S_9 =75, find a and a_9 .

In an AP :- given a = 2, d = 8, S_n = 90 find n and a_n .

In an AP :- given a = 3, n = 8, S = 192, find d.

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In an AP :- given a = 8, a_n = 62. S_n =210, find n and d .

PSEB-ARITHMETIC PROGRESSIONS -EXERCISE
  1. Find the sums given below :- - 5 + (- 8) + (- 11) +...+ (- 230).

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  2. In an AP :- given a = 5, d = 3, an = 50 find n and Sn.

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  3. In an AP :- given a = 7, a13 = 35 find d and S13.

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  4. In an AP :- given a12 = 37, d = 3, find a and S12.

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  5. In an AP :- given a3 = 15, d , S10=125 find d and a10.

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  6. In an AP :- given d = 5, S9=75, find a and a9.

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  7. In an AP :- given a = 2, d = 8, Sn = 90 find n and an.

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  8. In an AP :- given a = 8, an = 62. Sn=210, find n and d .

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  9. In an AP :- given an = 4, d=2, Sn=-14, find n and a .

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  10. In an AP :- given a = 3, n = 8, S = 192, find d.

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  11. In an AP :- given l = 28, S = 144, and there are total 9 terms. Find ...

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  12. How many terms of the A.P : 9, 17, 25... must be taken to give a sum o...

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  13. The first term of an AP is 5, the last term is 45 and the sum is 400. ...

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  14. The first and last terms of an AP are 17 and 350 respectively. If the ...

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  15. Find the sum of first 22 terms of an AP in which d=7 and 22nd term is ...

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  16. Find the sum of first 51 terms of an AP whose second and third terms a...

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  17. If the sum of first 7 terms of an AP is 49 and that of 17, terms is 28...

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  18. Show that a1,a2,….an,…form an AP where an is defined as below,- an=3+4...

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  19. Show that a1,a2,….an,…form an AP where an is defined as below,- an=9-5...

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  20. If the sum of the first n terms of an AP is 4n - n^2, what is the firs...

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