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If five times the fifth term of an A....

If five times the fifth term of an A.P. is equal to 8 times its eighth term, show that its `13 t h` term is zero.

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RD SHARMA-ARITHMETIC PROGRESSIONS-All Questions
  1. The 10 t h term of an A.P. is 52 and 16 t h term is 82. Find the...

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  2. Determine the general term of an A.P. whose 7t h term is -1 and 16 ...

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  3. If five times the fifth term of an A.P. is equal to 8 times its eig...

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  4. Which term of the A.P. 3,\ 15 ,\ 27 ,\ 39 ,\ will be 132 more t...

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  5. Two A.P.s have the same common difference. The first term of one of ...

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  6. A sum of Rs 1000 is invested at 8% simple interest per annum. Calcu...

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  7. In a flower bed there are 23 rose plants in the first row, twenty o...

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  8. Suba Rao started work in 1995 at an annual salary of Rs 5000 and re...

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  9. Jasleen saved Rs 5 in the first week of the year and then increased...

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  10. Find 10 t h term of the A.P. 1,\ 4,\ 7,\ 10 ,\ ddot

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  11. Find: 18th term of the A.P. sqrt(2),\ 3sqrt(2),\ 5sqrt(2) ddot

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  12. Find n t h term of the A.P. 13 ,\ 8,\ 3,\ -2,\ dot

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  13. Find 10 t h term of the A.P. -40 ,\ -15 ,\ 10 ,\ 35 ,\

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  14. Find 8t h term of the A.P. 117 ,\ 104 ,\ 91 ,\ 78 ,\

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  15. Find 11 t h term of the A.P. 10. 0 ,\ 10. 5 ,\ 11. 0 ,\ 11. 5 ,\ dd...

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  16. Find 9t h term of the A.P. 3/4,5/4,7/4,9/4,\ ddot

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  17. Which term of the A.P. 3,8,13… is 248?

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  18. Which term of the A.P. 84 ,\ 80 ,\ 76 ,\ ddot is 0?

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  19. Which term of the A.P. 4,9,14… is 254?

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  20. Which term of the A.P. 21 ,\ 42 ,\ 63 ,\ 84 ,\ dot is 420?

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