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Find the sum of the first 51 terms of the A.P.: whose second term is 2 and fourth term is 8.

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RD SHARMA-ARITHMETIC PROGRESSIONS-All Questions
  1. Find the sum of the first 11 terms of the A.P.: 2,\ 6,\ 10 ,\ 14 ,\...

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  2. Find the sum of the first 13 terms of the A.P: -6,\ 0,\ 6,\ 12 ,\ ...

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  3. Find the sum of the first 51 terms of the A.P.: whose second term i...

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  4. Find the sum of the first 15 multiples of 8

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  5. Find the sum of the first 40 positive integers divisible by (a) 3  ...

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  6. Find the sum of all 3 – digit natural numbers, which are divisible ...

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  7. Find the sum of all 3 – digit natural numbers, which are multiples ...

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  8. Find the sum: 2+4+6+\ +200 (ii) 3+11+19+\ +803 (iii) (-5)+(-8)+(...

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  9. Find the sum: 1+3+5+7+\ ddot\ +\ 199 (ii) 7+10 1/2+14+\ +84 (iii)...

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  10. Find the sum: 25+28+31+\ dot\ +100 (ii) 18+15 1/2+13+\ dot+\ (-49 ...

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  11. Find the sum of the first 15 terms of each of the following sequenc...

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  12. Find the sum of the first 15 terms of each of the following sequenc...

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  13. Find the sum of firsts 20 terms of the sequence whose n t h term is...

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  14. Find the sum of the first 25 terms of an A.P. whose n t h term is ...

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  15. Find the sum of the first 25 terms of an A.P. whose n t h term is ...

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  16. Find the sum of first 51 terms of an AP whose second and third terms ...

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  17. If the sum of 7 terms of an A.P. is 49 and that of 17 terms is 289,...

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  18. In an A.P. first term is 5, last term is 45 and sum = 400 . Find the n...

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  19. In an A.P., the sum of first n terms is (3n^2)/2+(13)/2n . Find its...

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  20. Let there be an A.P. with first term ' a ' , common difference '...

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