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Sum of the first 14 terms of an AP is 15...

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

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RD SHARMA ENGLISH-ARITHMETIC PROGRESSIONS-All Questions
  1. In an A.P., the first term is 2, the last term is 29 and sum of the te...

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  2. In an AP, the sum of first ten terms is -150 and the sum of its next t...

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  3. Sum of the first 14 terms of an AP is 1505 and its first term is 10. F...

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  4. The sum of first n terms of an A.P. is 5n^2+3n If its mth term is 168,...

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  5. The sum of first q terms of an A.P. is 63 q-3q^2 . If its p t h ...

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  6. The sum of first m terms of an A.P. is 4m^2-m . If its n t h ter...

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  7. In the A.P. nth term of an A.P. is given by (-4n + 15). Find the sum o...

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  8. Find the number of terms of the A.P. -12 ,\ -9,\ -6,\ dot,\ 12 . If...

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  9. The sum of first n terms of an A.P. is 3n^2+4n . Find the 25 t h...

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  10. The sum of first seven terms of an A.P is 182. If its 4^(th) term and ...

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  11. The sum of the first n terms of an A.P. is 3n^2+6n . Find the n^(t...

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  12. The sum of the first 7 terms of an AP is 63 and the sum of its next 7 ...

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  13. If Sn denotes the sum of the first n terms of an A.P., prove tha...

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  14. The sum of first n terms of an A.P. is 5n-n^2 . Find the n t h t...

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  15. The sum of the first n terms of an A.P. is 4n^2+2n . Find the n ...

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  16. If the 10 t h term of an A.P. is 21 and the sum of its first ten te...

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  17. The first and the last terms of an AP are 7 and 49 respectively. If...

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  18. If Sn denotes the sum of first n terms of an A.P., prove that S(...

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  19. If the sum of the first n terms of an A.P. is 1/2(3n^2+7n), then find ...

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  20. The sum of first 9 terms of an A.P. is 162. The ratio of its 6th t...

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