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If 4/5,\ a ,\ 2 are three consecutive...

If `4/5,\ a ,\ 2` are three consecutive terms of an A.P., then find the value of `a` .

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RD SHARMA ENGLISH-ARITHMETIC PROGRESSIONS-All Questions
  1. First the term of an A.P is p and its common difference is q. Find its...

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  2. For what value of p are 2p+1,\ 13 ,\ 5p-3 are three consecutive ...

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  3. If 4/5,\ a ,\ 2 are three consecutive terms of an A.P., then find t...

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  4. If the sum of first p terms of an AP is ap^2+bp find the common differ...

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  5. If 7th and 13th terms of an A.P. be 34 and 64 respectively, then its...

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  6. If the sum of P terms of an A.P. is q and the sum of q ter...

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  7. The sum of n terms of an AP is 3n^2+nand its common difference is 6,th...

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  8. The first and last terms of an A.P. are 1 and 11. If the sum of its ...

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  9. If the sum of n terms of an A.P., is 3n^2+5n then which of its terms i...

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  10. If the sum of n terms of an A.P. is 2n^2+5n , then its n t h ...

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  11. If the sum of three consecutive terms of an increasing A.P. is 51 a...

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  12. If four numbers in A.P. are such that their sum is 50 and the great...

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  13. Let Sn denote the sum of n terms of an AP whose first term is a. If co...

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  14. If the first, second and last term of an A.P. are a ,\ b and 2a res...

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  15. If S1 is the sum of an AP of 'n' odd number of terms and S2 be the sum...

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  16. If in an A.P., Sn=n^2p and Sm=m^2p , where Sr denotes the sum of...

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  17. Let Sn denotes the sum of the first of n terms of A.P. and S(2n)=3Sn ...

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  18. in an AP , Sp=q , Sq=p and Sr denotes the sum of the first r terms. Th...

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  19. If Sr denotes the sum of the first r terms of an A.P. Then, S(3n...

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  20. If the first term of an A.P. is 2 and common difference is 4, then ...

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