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For an AP,it is given that the first ter...

For an AP,it is given that the first term (a) = 5, common difference (d)= 3, and the `n^(th) term (a_n) =50`. Find n and the sum of first n terms `(S_n)` of the A.P.

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AGRAWAL PUBLICATION-ARITHMETIC PROGRESSIONS-EXAMPLE
  1. In an AP, if Sn + S7 =167 and S(10) =235, then find th AP, where Sn de...

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  2. The 4^(th) erm of an AP. Is zero. Prove that the 25th term of the A.P ...

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  3. For an AP,it is given that the first term (a) = 5, common difference (...

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  4. If 6 times the 6^(th) term of an AP. Is equal to 9 times the 9^(th) te...

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  5. Find the sum of all 11 terms of an A.P. whose middles term is 30.

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  6. Find the sum first 15 multiples of 8.

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  7. Two AP's have the same common difference.The diference their between t...

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  8. Justify whether it is true to say that the following are the n^(th) te...

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  9. Justify whether it is true to say that the following are the n^(th) te...

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  10. Justify whether it is true to say that the following are the n^(th) te...

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  11. Find a, b, and c such that the following numbers in AP: a,7, b, 23, c.

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

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

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

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

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

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

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

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

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

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