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The number of terms of an A.P. is even, ...

The number of terms of an A.P. is even, the sum of odd terms is 24, of the even terms is 30, and the last term exceeds the first by `10 1/2` find the number of terms and the series.

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RD SHARMA ENGLISH-ARITHMETIC PROGRESSIONS-All Questions
  1. The third term of an A.P. is 7 and the seventh term exceeds three time...

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  2. The first term of an A.P.is 2 and the last term is 50. the sum of all ...

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  3. The number of terms of an A.P. is even, the sum of odd terms is 24, of...

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  4. If in an A.P, Sn=n^2p and Sm=m^2p, then Sp is equal to

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  5. If 12th term of an A.P. is -13 and the sum of the first four terms i...

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  6. If the 5th and 12th terms of an A.P. are 30 and 65 respectively, wha...

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  7. Find the sum of n terms of an A.P. whose kth terms is 5k+1.

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  8. Sum of all two digit numbers which when divided by 4 yield unity as re...

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  9. If the sum of a certain number of terms of the AP 25,22,19... is 116. ...

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  10. How many terms of the A.P. -6, -(11)/2,\ -5,... are needed to give the...

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  11. In an A.P. the first term is 2 and the sum of the first five terms is ...

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  12. If Sn=n P+(n(n-1))/2Q ,w h e r eSn denotes the sum of the first n term...

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  13. The sum of n terms of two arithmetic progressions are in the ratio 5n+...

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  14. If 2/3, k ,5/8 are in A.P., find the value of kdot

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  15. If 1/a ,1/b ,1/c are in A.P. prove that: (b+c)/a ,(c+a)/b ,(a+b)/c are...

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  16. If a, b, c are in A.P., prove that a^(2)(b+c),b^(2)(c+a),c^(2)(a+b)" a...

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  17. If a, b, c are in A.P, then show that: b+c-a ,\ c+a-b ,\ a+b-c are in ...

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  18. If a, b, c are in A.P, then show that: \ b c-a^2,\ c a-b^2,\ a b-c^2 a...

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  19. If (b+c)/a,(c+a)/b,(a+b)/c are in A.P. show that 1/a,1/b1/c are als...

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  20. If (b+c)/a ,(c+a)/b ,(a+b)/c are in A.P., prove that : b c ,\ c a ,\ a...

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