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Which term of the sequence 20 ,\ \ 19...

Which term of the sequence `20 ,\ \ 19 1/4,\ \ 18 1/2,\ \ 17 3/4,\ dot` is the first negative term?

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EDUCART PUBLICATION-ARITHMETIC PROGRESSIONS-SHORT ANSWER (SA - II) TYPE QUESTIONS
  1. Determine the AP whose fifth term is 19 and the difference of the eigh...

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  2. The sum of the first 30 terms of an A.P. is 1920. if the fourth term i...

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  3. Which term of the sequence 20 ,\ \ 19 1/4,\ \ 18 1/2,\ \ 17 3/4,\ d...

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  4. Find the middle term of th e A.P. 7, 13, 19, … 247.

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  5. Split 207 into three parts such that these are in AP and the product o...

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  6. How many numbers lie between 10 and 300, which divided by 4 leave a re...

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  7. Find the sum of two middle terms of the AP -4/3,-1,-2/3,-1/3,...,4(1/3...

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  8. Show that the sum of an A.P. whose first term is a, the second term is...

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

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  10. If S(n) denotes the sum of first n terms of an AP, then prove that S(1...

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  11. If sum of first 6 terms of an AP is 36 and that of the first 16 terms ...

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  12. The sum of the first n terms of an AP whose first term is 8 and the co...

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  13. If the m^(t h) term of an A.P. is 1/n and the n^(t h) terms is 1/m , s...

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  14. find the sum of n terms of the series (4-1/n)+(4-2/n)+(4-3/n)+...........

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  15. For what value of n, the nth terms of the arithmetic progressions 63, ...

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  16. Find the sum of the first 40 positive integers divisible by 6.

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  17. Divide 56 in four parts in A.P. such that the ratio of the product of ...

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  18. If the sum of first 7 terms of an A.P. is 49 and that of its 17 terms ...

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  19. If the sum of first m terms of an A.P. is the same as the sum of its f...

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  20. How many terms of the A.P. 9, 17, 25, …..must be taken to give a sum o...

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